When Fleshbag Marauder enters the battlefield, each player sacrifices a creature.
Grixis is a world where the only things found in abundance are death and decay. Corpses, whole or in part, are the standard currency among necromancers and demons.
Counter target instant or sorcery spell unless its controller pays .
Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)
Ghave, Guru of Spores enters the battlefield with five +1/+1 counters on it.
, Remove a +1/+1 counter from a creature you control: Create a 1/1 green Saproling creature token.
, Sacrifice a creature: Put a +1/+1 counter on target creature.