Forerunner of the Empire 

Creature — Human Soldier
When this creature enters, you may search your library for a Dinosaur card, reveal it, then shuffle and put that card on top. Whenever a Dinosaur you control enters, you may have this creature deal 1 damage to each creature.
Legality
standardNOT LEGALpioneerLEGALmodernLEGALlegacyLEGALvintageLEGALcommanderLEGAL