This would make the AI smarter. I would love this but it would obviously need to be in some way dealt with so the player can make it even, if not counter. I feel instead of bombies it should be the gremlin knockers as pairing undead with gremlins is kinda unfair as they resist what the other is weak to. What the demos could do is if the knocker is hurt the knocker would run up to the demo and tug at his pant leg. The knocker would look down and hand him a low tire pill and full heal the knocker. After the knocker is healed it can be used in a special attack. The demo picks up the knocker and tosses it at a knight. The knocker will be going sticks first and they blow up on contact dealing tons of elemental damage and high odds for a status.