David, Last Dragonborn

(Partners with any Dawnguard, Blades, Kaidan, Inigo, Lucien, Remiel, Xelzas, Baldizar, Vilja,
Azur.) When David, Last Dragonborn enters the battlefield, he has Haste, Vigilance, Archer, Reach, +1/+1 per Partner. Dragons and Thumes have Flash. Dragons have +1/+1.
{w}{r/g}{t}Search your Library for a Dragon or a
Thume and place it in your hand.
{r}{r/g}{t}Partner with a Legendary Dragon, he gains Dragon Rider, Trample, Lifelink.