Eiderad Serquo

Doublestrike, haste
Whenever Eiderad attacks for the first time each
turn, untap Eiderad. There is an additional
combat phase after this one.
Pay 5 life: Untap Eiderad. There is an additional combat phase followed by an additional
postcombat main phase. Sacrifice Eiderad at the
end of that combat.
It is wise to stand behind the murdercopter as to not get
blood all over one's clothes.