Charge: If the elk moves at least 20 feet straight toward a target and then hits it with a ram attack on the same turn, the target takes an extra 2d6 damage. If the target is a creature, it must succeed on a DC 14 Strength saving throw or be knocked prone. Crusher: Once per turn, when you hit a creature with an attack that deals bludgeoning damage, you can move it 5 feet to an unoccupied space, provided the target is no more than one size larger than you. When you score a critical hit that deals bludgeoning damage to a creature, attack rolls against that creature are made with advantage until the start of your next turn.
Ram: Melee Weapon Attack: +9 to hit, reach 10 ft., one target. Hit: 2d6 + 4 bludgeoning damage. Hooves: Melee Weapon Attack: +9 to hit, reach 5 ft., one prone creature. Hit: 4d8 + 4 bludgeoning damage.