Rathalos, King of the Skies

Partner with Rathian, Queen of the Land (When
this creature enters the battlefield, target player may
put Rathian into their hand from their library, then
shuffle.)
Flying, haste
{r}: Rathalos gets +1/+0 until end of turn.
Whenever Rathalos deals combat damage to a
player, return it to it's owner's hand.
If Rathalos would die, you may shuffle it into
your library instead.