Corrosive Mentor
Creature — Elemental Rogue
Black creatures you control have wither. (They deal damage to creatures in the form of -1/-1 counters.)
1/3
standard
future
historic
gladiator
pioneer
explorer
modern
legacy
pauper
vintage
penny
commander
brawl
alchemy
paupercommander
duel
oldschool
premodern
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