I think this spell could be very funny. On tactical battles it could cause a lots of surprise to anybody. (Excuse me for my bad english.)
The spell: When a chaneller cast this spell, on the adjacent tiles (random adjacent tiles) appears one or two max three (depends on spell level) clones. Additionaly the chaneller randomly changes place with its clones (or stay), so the enemy doesn't know where is the chaneller.
The clones behave exactly as the chaneller. They make the same actions, but they are only illusions. Their relative positions to the caster are fixed. So only the chaneller can move, and the clones move with. If they clash anything when the chaneller moves they disappear. I they are attacked they disappear. If the chaneller attackes somebody in melee he uncloak himself, so all the clones disappear. If the chaneller uses ranged attack, but one of its clones is out of range that clone disappears.
On highest level the chaneller could clone other units either, but i think this case would be enough only one clone.
This spell can be worked out in a lots of way. This was one of them.
Opinions?