Gorvin, Hydra of Growth

If {x} is 2 or more creatures you control have
trample and haste
If {x} is 4 or more creatures you control have
+1/+1 and vigilance
If {x} is 6 or more creatures you control have
first strike
If {x} is 8 or more creatures you control have
deathtouch and reach
If {x} is 10 or more creatures you control have
cascade and indestructible