Pick up a mine, keep it on your cursor. Move into Brax' shop. Put the mine down. Pick it up again and you get Brax aggro. Sword special move does less damage if a target is a square or two away, dunno if this is by design or not. Only tested with Dual Wield - which we know is bugged already.
The sword special move is probably only doing the extra damage from the move itself in the extra tiles, and weapon damage do adjacent.
