Dromoka, Queen Of Scales

Eminence -As long as Dromoka, Queen Of Scales
is in the command zone or on the battlefield,
dragons you control with three or more
+1/+1 counters on it have Ward 3.
Flying, trample
Whenever Dromoka, Queen Of Scales attacks,
put up to three cards from your graveyard to the
buttom of the library, distribute three +1/+1
counters among dragons you control.