I think you had it at "...can't be hit by an attack action till end next turn. All your grims are locked till end next turn."
As for Dion/Mystere+Emana, you need to adres the files SP flow. 2SP means unless it's lvl1s you break even each turn or gain huge advantages on the SP curve. If only you guys had the balls to properly nerf Owl this whole returnfest wouldn't be so gawdforsaken lame and easy to accomplish.