*** Problem***
Due to size differences of illuvials sometimes you can't drag and drop an illuvial from your bench onto the board or vice versa.
*** Example ***
You have 5 seconds left and you need to switch out that damn Groko that has been there for 6 rounds already. You grab your Scarabok from the bench and click your Groko but nothing happens. The round begins and you are angry as Kieran is now going to win.
*** Solution ***
Even though illuvials have size differences they should still be able to be switched and the illuvial simply moves to the next best available position on the board.
When you have time in a round then move all your illuvials one hex at a time to fit something in perfectly, but we've all had that situation (many times) when you just want something on the board quickly for the synergy. It doesn't matter if the illuvial is automatically moved to the bottom left by 20 hexes. It could make an audible warning that it didn't move into the exact same spot so if the player still has time they can adjust.