Ägir, Primordial Sea

Eminence — As long as the Ur-Dragon is in the
command zone or on the battlefield, other Dragon
spells you cast cost 1 less to cast.
Flying
Whenever one or more Dragons you control attack,
draw that many cards, then you may put a
permanent card from your hand onto the battlefield.

“Those fools were but splashes of water beneath my
Bow!” –Ägir