Tyranny of Dragons
Pack Tactics. The drake has advantage on an attack roll against a creature if at least one of the drake’s allies is within 5 feet of the creature and the ally isn’t incapacitated.
Surprise Attack. If the drake surprises a creature and hits it with an attack during the first round of combat, the target takes an extra 7 (2d6) damage from the attack.
Bite. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 4 (1d6 + 1) piercing damage.