USD
$0.31
USD foil
$0.27
EUR
€0.15
MTGO
0.03 tix
Professor's Warning
Instant
Choose one —
• Put a +1/+1 counter on target creature.
• Target creature gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)
Professor Onyx urged the twins to prepare for the dark mage Extus, sounding very much like someone familiar with the rise of tyrants.
- Set
- Strixhaven: School of Mages (STX #84)
- Rarity
- Common
- Mana value
- 1
- Released
- 2021-04-23
- Artist
- Kieran Yanner
- EDHREC rank
- #8,760
- Colour identity
- Finishes
- Nonfoil, Foil
- 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
0.00
How much players resent seeing this card. The scale tops out around 3.1.
Combos
Not part of any combo on Commander Spellbook.
Format legality
Standard
Not legal
Pioneer
Legal
Modern
Legal
Legacy
Legal
Vintage
Legal
Pauper
Legal
Commander
Legal
Oathbreaker
Legal
Duel Commander
Legal
Brawl
Legal
Standard Brawl
Not legal
Historic
Legal
Timeless
Legal
Alchemy
Not legal
Penny
Not legal
Premodern
Not legal
PreDH
Not legal
Pauper EDH
Legal
Old School
Not legal
Future
Not legal
Gladiator
Legal