Gravelgill Duo
f2fd4959-bfff-46dc-b568-b6d69ef8eac9
$0.25 CND
Whenever you cast a blue spell, Gravelgill Duo gets +1/+1 until end of turn.
Whenever you cast a black spell, Gravelgill Duo gains fear until end of turn. (It can't be blocked except by artifact creatures and/or black creatures.)