What would your special unit be able to do?

[Ryzuma]

What about a team where the units are made of playdough and the special is a baby.
Health: 1
Movement: 4
Damage: None
Ability: Can upgrade adjacent units for 1 wit. Runners become soldiers. Soldiers become heavies. Heavies become snipers. You can upgrade as much as you want if you have the wit. Their current hp wouldn't change but they can be healed. Heavy to sniper would drop to 1 hp whether the heavy was healed or not. Units can't move after they have been upgraded but can attack.