Awesome idea

Balance wise right now -- I think we should allow healing to heal damage applied in the same tick. Otherwise defending seems too powerful. A 40-boosted ATTACK part creep will deal 4800 dmg/tick. This requires 15 ghodium-boosted TOUGH parts to tank -- if the defender has two such creeps in range, you need 30 of those parts, leaving only 10 slots in a T3 boosted creep for anything else.

Either way -- both PR's are very important for fixing the currently broken damage system, where you need to build your creeps anticipating to tank two hits from any expected attackers, e.g. worst-case 19200 dmg from two melee defenders on ramparts -- effectively not tankable even with 50 x ghodium-boosted TOUGH.