Kar'laorn, Primal Apex

Double strike, trample, haste
Whenever Kar'laorn, Primal Apex deals combat
damage to a player, put that many +1/+1
counters on this creature.
{r}: Put a +1/+1 counter on this creature.
{3}{p/r}{p/r}: Creatures you control gain double strike
until end of turn.