Strom Wurm

Indestructible, Trample, Double Strike, Reach
Strom Wurm can;t be countered
{x} Strom Wurm gets Double the ammount of X
in +1/+1 counters(if you paid 1 it gets 2),
Give every creature +2/+2
Double all +1/+1 counters at the end of your
upkeep