A few friends were theory-crafting DM usage. Think of it, a small party of C3 Clerics all banding together. One casts DM on the ground, then guess what? A different cleric picks it up to lay down a buffed DM! Continue with the chain reaction to dish out a nuking Cure on the ground.
A shame that max skill level is 25, and that kinda makes the theory crumble. It’d be hilarious to see though.