Sir Adranoc, the Guardian

Flying, Haste
When Sir Adranoc the Guardian enters the battlefield, place 7 +1/+1 counters on it. When target creature you control defends, place any number of counters on it not to exceed the number of counters left on Sir Adranoc.
{x}{t}: Sir Adranoc the Guardian takes control of x dragons on the battlefield, where x is the total number of lands you control.