Nephilim Berserker

This card cannot attack or defend unless you
control a Maw Forceful Being card with Rank III
or higher.
While you control a Maw Forceful Being, this
card gains Rampage.
If a Maw Forceful Being card you control would
be destroyed, you can pay {2}{r/g} and sacrifice
this card to give that Maw Forceful Being card indestructible until end of turn.