Armored elephant

Trampling Charge. If the elephant moves at least 20 feet straight toward a creature and then hits it with a gore attack on the same turn, that target must succeed on a DC 12 Strength saving throw or be knocked prone. If the target is prone, the elephant can make one stomp attack against it as a bonus action.

Fort the armored elephant has a little fort on the back; any one in it has 3 quarter cover. The fort has a AC of 18 and 100 HP immunity to poison, necrotic and psionic with vulnerability to fire. The fort has a ballista mounted in a turret, anyone in the turret can make the following attack on their turn

Weapon: Repeating Ballista

Armor Class 15

Hit Points 50 each

Ranged Weapon Attack: +6 to hit, range 120/480 ft., one target. Hit: 16 (3d10) piercing damage.

Ammunition (range 120/480), heavy, reload (5 shots), two-handed, you can shoot once a turn with aiming and reloading included in that turn but when you run out shots in your magazine it takes a turn to reload the mag

it and has suitable quarters for up to 10 people of medium or smaller size. Additionally, it has a rope ladder that can be lowered over the side of the armored elephant. This allows a creature of medium or smaller size to climb in or out of the fort using half their walking speed.

The armored elephant can carry 1800 pounds

Obey The armored elephant will obey its owner and knows the following commands:

Gore. Melee Weapon Attack: +8 to hit, reach 5 ft., one target. Hit: 19 (3d8 + 6) piercing damage.

Stomp. Melee Weapon Attack: +8 to hit, reach 5 ft., one prone creature. Hit: 22 (3d10 + 6) bludgeoning damage.