Ra'qu-en, impending doom

Indestructible,Flying
When Ra'qu-en, impending doom enters in batllefield distribute five cultilist markers
{u}{b}{2}:Target oponent sacrifice a creature
with cultilist marker
{u/b}{6}:Distribute five cultilist markers
When one creature dies put a +1/+1 counter
on Ra'qu-en, impending doom