I’m not sure if this idea has been brought to light, as I haven’t found anything about it on the forum yet, but I have a simple and amazing suggestion for the tile board.
As we all know, a match of 5 tiles creates the “power crystal” or “super gem” that, when activated, clears all the tiles of that color from the board. My question/suggestion would be, in the the event that you could make a match of 3 or more of these crystals (could be same color or not), maybe have the special for it completely clear the entire board, sending the mass spectrum of tiles at your enemies?!
It doesn’t happen very often but I’ve been able to make said crystal match every once in a while. I just think something like that should have its own special ability, considering its rarity.