Murtagh, Dragon Rider

Vigilance

When Murtagh enters the battlefield, you may search
your library for a Dragon creature card, reveal it,
put it into your hand, then shuffle your library.

As long as Thorn is on the battlefield, Murtagh gets
+1/+1 and has lifelink.

"Bound by oath and kinship, Murtagh rides
into battle with his loyal companion, Thorn."