Creepers

Creepers are a "high-risk high-reward" breakthrough-type troop that deals massive AOE-type damage to nearby mobs (and players) when slain and massive damage to barricades when it reaches them.

"Make your enemies yell Creeper Aw Man as they blow up at your opponent's barricade! Creepers deal 30% more damage to barricades."

Note: Creeper explosions do not effect the attacking kingdom's mobs or players.