Homebrew
Trampling Charge. If the Koda moves at least 20 ft. straight toward a creature and then hits it with a headbutt attack on the same turn, that target must succeed on a DC 14 Strength saving throw or be knocked prone. If the target is prone, the Koda can make another attack with its stomp against it as a bonus action.
"She is snorting... RUN!"
Headbutt. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: (1d8 + 4) bludgeoning damage. 1d8+4
"When she lowers her head, the Koda will charge" - Sadzovari proverbStomp. Can only be used against prone foes. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: (3d6 + 4) bludgeoning damage. 1d8+4
"First she snorts, then she stomps, then you die" - Sadzovari lesson to children