Professor's Warning
Instant$0.35
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.)
Legal in Commander
Is
Does
Best commanders
Commanders whose abilities work with this card and share its colors, from what the cards do.
- Mauhúr, Uruk-hai CaptainProfessor's Warning puts +1/+1 counters on your creatures and Mauhúr, Uruk-hai Captain doubles counters.
- Arna Kennerüd, SkycaptainProfessor's Warning puts +1/+1 counters on your creatures and Arna Kennerüd, Skycaptain doubles counters.
- Yawgmoth, Thran PhysicianYawgmoth, Thran Physician proliferates and Professor's Warning puts +1/+1 counters on your creatures.
- Atraxa, Praetors' VoiceAtraxa, Praetors' Voice proliferates and Professor's Warning puts +1/+1 counters on your creatures.
- High Perfect MorcantHigh Perfect Morcant proliferates and Professor's Warning puts +1/+1 counters on your creatures.
- Agent Frank HorriganAgent Frank Horrigan proliferates and Professor's Warning puts +1/+1 counters on your creatures.
- Brimaz, Blight of OreskosBrimaz, Blight of Oreskos proliferates and Professor's Warning puts +1/+1 counters on your creatures.
- Xavier Sal, Infested CaptainXavier Sal, Infested Captain proliferates and Professor's Warning puts +1/+1 counters on your creatures.
- Tam, the PossibilityTam, the Possibility proliferates and Professor's Warning puts +1/+1 counters on your creatures.
- Ramos, Dragon EngineProfessor's Warning puts +1/+1 counters on your creatures, which Ramos, Dragon Engine can use.