Veitores, Guildford Dragon

Flying, trample
Veitores, Guildford Dragon enter the battlefield
with 4 +1/+1 counter.
When Veitores, Guildford Dragon deal damage to player, double the counter on Veitores, Guildford Dragon.
Remove 3 +1 /+1 counter on it: Deal 3 damage to target creature.