The Ur-Sphinx
Legendary Creature — Sphinx Avatar
Eminence — As long as The Ur-Sphinx is in the command zone or on the battlefield, other Sphinx spells you cast cost 
less to cast.
Flying
Whenever one or more Sphinxes you control attack, each player mills that many cards. For each player, you may cast a card that player milled this way without paying its mana cost.
10 / 10
- Set
- Reality Fracture Commander (FRC #97)
- Rarity
- Rare
- Mana value
- 9
- Released
- 2026-10-02
- Artist
- Alexandre Honoré
- EDHREC rank
- #11,911
- Colour identity
- Finishes
- Nonfoil
- Served from
- Local database
Commander bracket
Derived from card traits, not a ruling — bracket rules turn on how a deck intends to use a card. Bracket rules
EDHREC
Combos
Not part of any combo on Commander Spellbook.
Format legality
Rulings
- 2026-08-21
If a Sphinx you control enters attacking, it won't cause the Ur-Sphinx's last ability to trigger.
- 2026-08-21
You cast the spells while The Ur-Sphinx's last ability is resolving and still on the stack. You can't wait to cast them later in the turn. Timing restrictions based on the cards' types are ignored. If you cast a spell "without paying its mana cost," you can't choose to cast it for any alternative costs. You can, however, pay additional costs. If a spell has any mandatory additional costs, you must pay those costs to cast that spell. If a spell has
in its mana cost, you must choose 0 as the value of X.