I suggest a new spell: Mirror. It’s particularly effective if the king is alone. When enemy units and/or beast attack the king (only the king, not his summoned units), he doesn’t suffer damage, while enemy units suffer their own attacks. The spell works also on towers and obstacles (in this case only spike). If a wave made by cannons and mortars attack the king, cannons suffer only their respective cannon attacks, while mortars suffer only their respective mortar attacks. If an arblaster placed in defense attacks a knight, that is reaching the gate and is protecting the king, while mirror spell is actived, the arblaster doesn’t suffer damage. If 2 skull towers (they have blunt damage, 50% weakness to blunt damage and 4,9 of attack rate) of level 10 (29k health and 1446 damage) attack the king, each of the 2 skull towers will be destroyed in 11 shots and with a time between 2,05s and 2,25s (if the spell is at level 1, it’s not enough to destroy) if mirror spell is actived. Enemy units and buildings with high damage, high attack rate, low health, without resistance and/or weakness to their respective attacks are more vulnerable.
Duration: 2s at level 1, later +0,5s for each level until level 5 (it’s the maximum level).
Cooldown, range and duration can be forged.
Discussions about the duration of the spell are suggested.