Cankerous Thirst
45840408-33e7-43fa-96ab-d3bd53e3fd6b
$0.50 CND
If {B} was spent to cast Cankerous Thirst, you may have target creature get -3/-3 until end of turn. If {G} was spent to cast Cankerous Thirst, you may have target creature get +3/+3 until end of turn. (Do both if {B}{G} was spent.)