Mechasort

When this creature enters the battlefield, Deploy
3. (Put two +1/+1 counters on target army you
control. If you do not control an army, create a
0/0 robot pirate army token first.)
Remove five +1/+1 counters from target army
you control: you may cast target instant or
sorcery from your hand with converted mana
cost 4 or less without paying its mana cost.