Animate Giant Dead

This spell creates a giant undead servant. The giant creature can either be a skeleton or zombie weighing no more than 50 pounds. The undead creature has a wooden saddle strapped to its back that can hold 5 medium humanoid creatures inside. The giant can only hold 100 pounds of any material or jump 20 feet off the ground without falling apart and dying.

On each of your turns, you can use a bonus action to mentally command any creature you made with this spell if the creature is within 120 feet of you. You decide what action the creature will take and where it will move during its next turn, or you can issue a general command, such as to guard a particular chamber or corridor. If you issue no commands, the creature follows and defends you against hostile creatures. Once given an order, the creature continues to follow it until its task is complete. The creature can walk 120 feet at any time, and can only swim or climb a vertical rock face if it has 3 or lower passengers on the saddle.

The creature is under your control until you remove the spell,  then the creature fades from existence, leaving behind the items used to cast it. If the creature takes more damage than it has left, it enacts one final act of aggression on the attacker before exploding into ashes. Anything in the saddle of the creature or carried in its arms falls to the ground normally unless it was on the ground. the creature naturally has 60 HP, 20 defence, and can use a tree or rock to attack, dealing 1 D10+5, or an unarmed strike dealing 1 D8 damage.