Gishath, Sun's Avatar

Vigilance, trample, haste
Whenever Gishath, Sun's Avatar deals combat damage to a player, reveal that many cards from the top of your library. Put any number of Dinosaur creature cards from among them onto the battlefield and the rest on the bottom of your library in a random order.

Aether Flash

Whenever a creature enters, Aether Flash deals 2 damage to it.

Rile

Rile deals 1 damage to target creature you control. That creature gains trample until end of turn.
Draw a card.