Armor Crusher: A hyenadon's bite attack ignores AC buffs granted from light and medium armor types.   Keen Smell: The hyenadon has advantage on Wisdom (Perception) checks that rely on smell.   Pack Tactics: The hyenadon has advantage on an attack roll against a creature if it has at least one of the hyenadon's allies within 5 ft. of the creature and the ally isn't incapacitated.   Rampage: When the hyenadon reduces a creature to 0 hit points with a melee attack on its turn, the hyenadon can take a bonus action to move up to half its speed and make a bite attack.