Name: Professor's Warning Cost: B CMC: 1 Color: B CID: B Type: Instant Rules 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.) Set/Rarity: Strixhaven: School of Mages common Set Code: STX-C Legality: Legal in legacy, Legal in gladiator, Legal in duel, Legal in pauper, Legal in brawl, Legal in vintage, Legal in historic, Legal in modern, Legal in paupercommander, Legal in oathbreaker, Legal in commander, Legal in timeless, Legal in pioneer Price: $0.33 Foil price: $0.27