Spawnbroker
From Ravnica: City of Guilds set
Spawnbroker
Creature — Human Wizard
1/1
When this creature enters, you may exchange control of target creature you control and target creature with power less than or equal to that creature's power an opponent controls.
Rulings
- If either target becomes illegal (say, if a creature’s power has changed such that the creature you control now has less power than the other creature), then the exchange won’t happen.
