Tyranid Hive Queen

Assimilation -When a creature you control enters it becomes a tyranid in addition to it's other types and has evolve
Tyranid hive queen gets +1/+1 for each other tyranid you control

Insatiable Hunger -If Tyranid Hive Queen's power is equal to 10 or more you may cast tyranids from your graveyard, all tyranids you control gain trample, and Whenever you attack with Tyrani Hive Queen for the first time each turn there is an additional combat phase