Gravemind, Parasite Lord

Eminence-All creatures you own or control are
flood in addition to their other types.
All flood have the abilities of other flood you
control.
Gravemind gets +1/+1 for each flood
creature on the battlefield.
At the beginning of your upkeep create a flood
stalker token with, "{t}, sacrifice this creature:
create a flood tank token or flood ranged token"