Choo Choo Charles

Fire Aversion. If Charles takes fire damage his speed is halved.

Escapist. Charles cannot be trapped and if he takes 100 damage in a round of combat he will flee. If Charles is not in combat he regenerates all his HP.

Clever. Charles will not fall for traps unless he is Hell Charles.

Spider Climb. Charles can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Teleport(Only As Hell Charles). Hell Charles teleports to a random location out of enemy fire within 20 feet.

Devour. Charles can use an action to devour and insta kill anything he has grappled.

Claw. Melee Weapon Attack: +10 to hit, reach 5 ft., 1 target. Hit: 20 (4d10 + 5) piercing damage. 

Impale. Melee Weapon Attack: +10 to hit, reach 5 ft., 1 target. Hit: 20 (4d10 + 5) piercing damage and target is grappled.

If Charles's eggs are destroyed, the energy goes into Charles, turning him into Hell Charles.

Hell Charles(Costs 0 Actions). Charles increases his size from large to huge. Charles gains the ability to teleport and will no longer flee.