Cankerous Thirst

Instant — {3}{B/G}

If {B} was spent to cast this spell, you may have target creature get -3/-3 until end of turn. If {G} was spent to cast this spell, you may have target creature get +3/+3 until end of turn. (Do both if {B}{G} was spent.)

Rareza: uncommon

Rango EDHREC: 29415