Darth Vader, Emperor's Wrath

[Tramplel]
Whenever Darth Vader, Emperor's Wrath deals
combat damage to a player, add that many +1+1 counters to Darth Vader, Emperor's Wrath.
Remove two +1+1 counters: destroy target
artifact, creature, or enchantment.
Remove five +1+1 counters: Every creature gets
three -1-1 counters added to them.