Miscellaneousaurus

Discard this card: Dinosaurs you control gain Hexproof until end of turn.
Exile X Dinosaur creatures from your graveyard: Search your library for one or more Dinosaur creature cards with a total converted mana cost of X. Put those cards onto the battlefield and they gain Haste and "Send this creature to the graveyard during the end step". Shuffle your library. Activate this ability only once each turn.