The pawns completely ruin that game. Primarily due to the way they engage targets. In particular how magic, naturally, has casting time. A pawn will only begin casting when it acquires a target. If it loses that target, for any reason, it will immediately stop casting, find a new target, and begin the painstaking process of casting again. Which is compounded by the fact that they always cast the max level of a spell. Rather than firing off a level 1 of a level 3 spell and dodging, they'd rather stop, hop around like mad, then begin casting anew. Especially exciting if you're reliant on those casters because you're in a room with mobs immune to physical attacks.