The Dragonborn

Reach, Trample

When this creature kills a Dragon, it gains Protection from Dragons until end of turn.

Whenever you cast a Shout, this card gains +1+1 until end of turn.

{w}{u}{b}{r}{g}: Search your library for a Dragon and exile it, then create a token copy of it until end of turn. It gains Haste. Return the creature exiled this way to your library and shuffle at the end of your turn.