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Crystal Skull, Isu Spyglass
MTGO 0.02 tix

Crystal Skull, Isu Spyglass

{2}{U}{U}

Legendary Artifact

You may look at the top card of your library any time.

You may play historic lands and cast historic spells from the top of your library. (Artifacts, legendaries, and Sagas are historic.)

{T}: Add {U}.

The device can spy on anyone with just a drop of their blood.

Set
Assassin's Creed (ACR #188)
Rarity
Rare
Mana value
4
Released
2024-07-05
Artist
Thanh Tuấn
EDHREC rank
#1,976
Colour identity
{U}
Finishes
Etched
Served from
Local database

Commander bracket

1 +
Fits any bracket
No Game Changer, land denial, extra turns or two-card combos.

Derived from card traits, not a ruling — bracket rules turn on how a deck intends to use a card. Bracket rules

EDHREC

Salt Score 0.86
How much players resent seeing this card. The scale tops out around 3.1.

Combos 106

Sensei's Divining Top+Etherium Sculptor+Crystal Skull, Isu Spyglass
{U}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Foundry Inspector+Crystal Skull, Isu Spyglass
{U}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Cloud Key+Crystal Skull, Isu Spyglass
{U}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Jhoira's Familiar+Crystal Skull, Isu Spyglass
{U}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Enthusiastic Mechanaut+Crystal Skull, Isu Spyglass
{U}{R}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Glaring Fleshraker+Crystal Skull, Isu Spyglass
{U}
Infinite card drawInfinite draw triggersNear-infinite creature ETBNear-infinite creature LTBNear-infinite creature sacrifice triggersNear-infinite damageNear-infinite death triggersNear-infinite storm count
Sensei's Divining Top+Helm of Awakening+Crystal Skull, Isu Spyglass
{U}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Semblance Anvil+Crystal Skull, Isu Spyglass
{U}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Urza, Lord Protector+Crystal Skull, Isu Spyglass
{W}{U}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Crystal Skull, Isu Spyglass+Voyager Quickwelder
{W}{U}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Birgi, God of Storytelling // Harnfel, Horn of Bounty+Crystal Skull, Isu Spyglass
{U}{R}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Crystal Skull, Isu Spyglass+Shuri, Wakandan Inventor
{U}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Ugin, the Ineffable+Crystal Skull, Isu Spyglass
{U}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+The Immortal Sun+Crystal Skull, Isu Spyglass
{U}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Crystal Skull, Isu Spyglass+Artist's Talent
{U}{R}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Stenn, Paranoid Partisan+Crystal Skull, Isu Spyglass
{W}{U}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Mind Over Matter+Crystal Skull, Isu Spyglass
{U}
Infinite draw triggersInfinite lootingInfinite self-discard triggersNear-infinite artifact ETBNear-infinite artifact LTBNear-infinite storm count
Sensei's Divining Top+Crystal Skull, Isu Spyglass+Bilbo, Thief in the Night
{U}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Crystal Skull, Isu Spyglass+Lyse Hext
{W}{U}
Infinite card drawInfinite draw triggersNear-infinite storm countNear-infinitely large creature until end of turn
Sensei's Divining Top+Herald of Kozilek+Crystal Skull, Isu Spyglass
{U}{R}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Crystal Skull, Isu Spyglass+Ballad of the Black Flag
{U}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Starnheim Courser+Crystal Skull, Isu Spyglass
{W}{U}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Crystal Skull, Isu Spyglass+Armor Wars
{U}{R}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Crystal Skull, Isu Spyglass+Iron Lad, Young Avenger
{U}{R}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Sage of the Beyond+Crystal Skull, Isu Spyglass
{U}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Heliod, the Radiant Dawn // Heliod, the Warped Eclipse+Crystal Skull, Isu Spyglass
{W}{U}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Longshot, Rebel Bowman+Crystal Skull, Isu Spyglass
{U}{R}
Infinite card drawInfinite draw triggersNear-infinite damageNear-infinite storm count
Sensei's Divining Top+Kykar, Wind's Fury+Crystal Skull, Isu Spyglass
{U}{R}{W}
Infinite card drawInfinite draw triggersNear-infinite creature ETBNear-infinite creature LTBNear-infinite creature sacrifice triggersNear-infinite death triggersNear-infinite storm count
Alela, Artful Provocateur+Sensei's Divining Top+Ashnod's Altar+Crystal Skull, Isu Spyglass
{W}{U}{B}
Infinite card drawInfinite draw triggersNear-infinite colorless manaNear-infinite creature ETBNear-infinite creature LTBNear-infinite creature sacrifice triggersNear-infinite creature tokensNear-infinite death triggersNear-infinite storm count
Sensei's Divining Top+Crystal Skull, Isu Spyglass+Valeria Richards, Precocious
{U}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Crystal Skull, Isu Spyglass+Sami, Wildcat Captain
{U}{R}{W}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Crystal Skull, Isu Spyglass+Savvy Trader
{G}{U}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Battered Golem+Paradise Mantle+Crystal Skull, Isu Spyglass
{U}
Infinite card drawInfinite draw triggersNear-infinite artifact ETBNear-infinite artifact LTBNear-infinite storm count
Sensei's Divining Top+Stone Calendar+Crystal Skull, Isu Spyglass
{U}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Traxos, Scourge of Kroog+Paradise Mantle+Crystal Skull, Isu Spyglass
{U}
Infinite card drawInfinite draw triggersNear-infinite artifact ETBNear-infinite artifact LTBNear-infinite storm count
Sensei's Divining Top+Crystal Skull, Isu Spyglass+Gran-Gran
{U}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+The Vision and Scarlet Witch+Crystal Skull, Isu Spyglass
{U}{R}
Infinite card drawInfinite draw triggersNear-infinite +1/+1 counters on a creatureNear-infinite storm count
Alela, Artful Provocateur+Sensei's Divining Top+Phyrexian Altar+Crystal Skull, Isu Spyglass
{W}{U}{B}
Infinite card drawInfinite draw triggersNear-infinite creature ETBNear-infinite creature LTBNear-infinite creature sacrifice triggersNear-infinite death triggersNear-infinite storm count
Valley Floodcaller+Sensei's Divining Top+Birds of Paradise+Crystal Skull, Isu Spyglass
{G}{U}
Infinite card drawInfinite draw triggersNear-infinite power and toughness for certain creatures until end of turnNear-infinite storm countNear-infinite untap of some creatures you control
Traxos, Scourge of Kroog+Sensei's Divining Top+Relic of Legends+Crystal Skull, Isu Spyglass
{U}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Umori, the Collector+Crystal Skull, Isu Spyglass
{B}{G}{U}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Steelfin Whale+Paradise Mantle+Crystal Skull, Isu Spyglass
{U}
Infinite card drawInfinite draw triggersNear-infinite artifact ETBNear-infinite artifact LTBNear-infinite storm count
Wan Shi Tong, All-Knowing+Sensei's Divining Top+Ashnod's Altar+Crystal Skull, Isu Spyglass
{U}
Infinite card drawInfinite draw triggersNear-infinite artifact ETBNear-infinite artifact LTBNear-infinite colorless manaNear-infinite creature ETBNear-infinite creature LTBNear-infinite creature sacrifice triggersNear-infinite creature tokensNear-infinite death triggersNear-infinite storm count
Sensei's Divining Top+Skirge Familiar+Crystal Skull, Isu Spyglass
{U}{B}
Infinite draw triggersInfinite lootingInfinite self-discard triggersNear-infinite artifact ETBNear-infinite artifact LTBNear-infinite storm count
Sensei's Divining Top+Council of the Absolute+Crystal Skull, Isu Spyglass
{W}{U}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Crystal Skull, Isu Spyglass+Advanced Reconstruction
{U}{R}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Aetherflux Reservoir+Treasonous Ogre+Crystal Skull, Isu Spyglass
{U}{R}
Infinite card drawInfinite draw triggersNear-infinite damageNear-infinite lifegainNear-infinite lifegain triggersNear-infinite red manaNear-infinite storm count
Sensei's Divining Top+Cemetery Prowler+Crystal Skull, Isu Spyglass
{G}{U}
Infinite card drawInfinite draw triggersNear-infinite storm count
Sensei's Divining Top+Traxos, Scourge of Kroog+Crystal Skull, Isu Spyglass+Enduring Vitality
{G}{U}
Infinite card drawInfinite draw triggersNear-infinite artifact ETBNear-infinite artifact LTBNear-infinite storm count
Sensei's Divining Top+Traxos, Scourge of Kroog+Cryptolith Rite+Crystal Skull, Isu Spyglass
{G}{U}
Infinite card drawInfinite draw triggersNear-infinite artifact ETBNear-infinite artifact LTBNear-infinite storm count

Showing the 50 most played of 106.

Format legality

Rulings

  • 2024-07-05

    A card, spell, or permanent is historic if it has the legendary supertype, the artifact card type, or the Saga subtype. Having two of those qualities doesn’t make an object more historic than another or provide an additional bonus—an object either is historic or it isn’t.

  • 2024-07-05

    An ability that triggers “whenever you cast a historic spell” doesn’t trigger if a historic card is put onto the battlefield without being cast.

  • 2024-07-05

    If the top card of your library changes while you’re casting a spell, playing a land, or activating an ability, you can’t look at the new top card until you finish doing so. This means that if you cast a spell from the top of your library, you can’t look at the next one until you’re done paying for that spell.

  • 2024-07-05

    If the top card of your library is a historic card with a disguise or morph ability, you can’t cast it face down from the top of your library with the permission granted by Crystal Skull because the resulting spell would not be a historic spell.

  • 2024-07-05

    Lands are never cast, so abilities that trigger “whenever you cast a historic spell” won’t trigger if you play a legendary land. They also won’t trigger if a card on the battlefield transforms into a card with the legendary supertype, the artifact card type, or the Saga subtype.

  • 2024-07-05

    Some abilities trigger “whenever you cast a historic spell.” Such an ability resolves before the spell that caused it to trigger. It resolves even if that spell is countered.

  • 2024-07-05

    You can look at the top card of your library whenever you want (with one restriction; see below), even if you don’t have priority. This action doesn’t use the stack. Knowing what that card is becomes part of the information you have access to, just like you can look at the cards in your hand.

  • 2024-07-05

    You must pay all costs and follow all timing rules for spells cast from the top of your library this way.

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