Skahr the Usurper

Trample
Tiamat's Champion- Whenever Skahr attacks an
opponent, you may put a Dragon creature card
from your hand onto the battlefield tapped and
attacking that opponent.
Infernal Conduit- Pay 7 life: Search your library
for a Dragon creature card, reveal it, put it into
your hand, then shuffle your library. Activate
only once each turn.