I had an idea for a new dark exlir troop called the "Black widow" Its a spider which has the ability to climb over walls and can be used in an offensive or defensive manner. Allow me to explain.
Normal Black widow (Defensive) - Ability to climb walls, Shoots out spider web to freeze defences (This of course will be nerfed to not make it OP) and Yes i am aware of Freeze potions but having another alternative to freeze potions would be interesting and adds a new dynamic to the game.
Caustic Widow (Offensive) - Ability to Climb walls, Shoots out acid to attack Normal buildings and Defences, and when destroyed splits into four tiny spiders that explodes into acid on buildings or defences.