Dragon Cannon

{5}{t} Deal 10 damage to every creature on the
field this, when you tap this card put 4 recharge counters on this this card doesn't untapped while
it has a recharge counter on it. At the beginning
of your first main you pay {3} if you do remove a recharge from this card, if that was the last
counter to be removed untap this card
A new weapon developed to hep stop the rampage, it
does massive damage over a wide area. Be careful
not to hit your teammates!