The second ability checks that the targeted creature is a Cleric or Wizard only at the time the ability is activated and at the time it resolves. It doesn’t check at the time the damage is actually prevented.
2009-10-01
wotc
If you activate Wandering Mage’s third ability, you put the -1/-1 counter on a creature you control as a cost. That means it happens when you activate the ability, not when it resolves. If paying the cost causes the only creature you control to have 0 toughness, it’s put into the graveyard before you can pay the cost again.
Format Legality
Standard
Not Legal
Future
Not Legal
Historic
Not Legal
Timeless
Not Legal
Gladiator
Not Legal
Pioneer
Not Legal
Modern
Not Legal
Legacy
Legal
Pauper
Not Legal
Vintage
Legal
Penny
Legal
Commander
Legal
Oathbreaker
Legal
Standardbrawl
Not Legal
Brawl
Not Legal
Alchemy
Not Legal
Paupercommander
Not Legal
Duel
Legal
Oldschool
Not Legal
Premodern
Legal
Predh
Legal
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