Overwhelming Majority

Multikicker {3} (You may pay an additional {3} any number of times as you cast this spell.)
Create a 2/1 Tyranid creature token for each
creature target opponent controls. If this spell
was kicked, create also a 5/5 black Tyranid
creature token with trample for each time it
was kicked.
Most of time, the only way to stop a tyranid invasion
is exterminatus.