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Professor's Warning
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Magic: The Gathering
Mana cost
Strixhaven: School of MagesSTX · #84
- Card type
- Instant
- Rarity
- Common
- Indicative price
- 0.24 € · ★ 0.18 € · 0.30 $ · ★ 0.27 $
- Mana value
- 1
- Colour
- Black
Card text
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.)
Format legality
- BrawlLegal
- CommanderLegal
- CompetitivebrawlLegal
- DuelLegal
- GladiatorLegal
- HistoricLegal
- LegacyLegal
- ModernLegal
- OathbreakerLegal
- PauperLegal
- PaupercommanderLegal
- PioneerLegal
- TimelessLegal
- VintageLegal
Legalities follow the imported catalogue; check format rules before a tournament.
Data imported on 2026-10-06 (UTC).
Indicative Scryfall prices, updated daily. ★: foil; ★ E: etched foil. EUR and USD represent different markets.
Printing information
- Illustrator
- Kieran Yanner
- Card language
- English
- Release date
- 2021-04-23
Flavour text
Professor Onyx urged the twins to prepare for the dark mage Extus, sounding very much like someone familiar with the rise of tyrants.