Ultkrish, Dragon Warlord

Mobilize —When Ultkrish, Dragon Warlord enters the battlefield, if you didn't cast it, create a 4/4 red Dragon Rebel creature token with flying.
{7}, {t}: Search your library for a Rebel permanent card with converted mana cost 6 or less and put it onto the battlefield. Shuffle your library. Then, Rebels and Dragons you control get +1/+1 until end of turn.