+guu (5)
Level up (: Put a level counter on this. Level up only as a sorcery.)
LEVEL 2-3
2/2
, : Target creature gets -2/-2 until end of turn.
LEVEL 4+
4/4
, : Target creature gets -4/-4 until end of turn.
When Guul Draz Mucklord dies, put a +1/+1 counter on target creature you control.
Flying
Landfall — Whenever a land enters the battlefield under your control, other creatures you control get +1/+0 until end of turn. If that land is a Swamp, those creatures get +2/+0 until end of turn instead.
Guul Draz Specter gets +3/+3 as long as an opponent has no cards in hand.
Whenever Guul Draz Specter deals combat damage to a player, that player discards a card.
As long as an opponent has 10 or less life, Guul Draz Vampire gets +2/+1 and has intimidate. (It can't be blocked except by artifact creatures and/or creatures that share a color with it.)
Gatherer works better in the Companion app!
(: Put a level counter on this. Level up only as a sorcery.), 
: Target creature gets -2/-2 until end of turn., : Target creature gets -4/-4 until end of turn.