Ambush at Night.
Your other Dinosaurs have +1/+1.
Ambush - An ambush unit can be played at the end of the enemy player's turn, or any time they are attacking you. If you played against a Killer or Relic Weapon attack, an Ambush unit will jump in the way to block that attack.
Night - When you start a turn at Night, draw an additional card and take 1 damage.