Consuming Corruption
Instant
Consuming Corruption deals X damage to target creature or planeswalker and you gain X life, where X is the number of Swamps you control.
Printings & Conditions (2)
Modern Horizons 3 (MH3)(Modern Horizons 3)#84Uncommon
Modern Horizons 3 (MH3)(Retro Frame) (Modern Horizons 3)#407Uncommon