Add an "are you sure you want to cast this..."-style pop-up message (similar to targeting a creature with Ward) when casting Seasons spells with no modes selected.

Because the mode counter button (with 5 black icons) looks similar to the black icons on the card text, it can be mistaken for a completed or otherwise active button instead of a completely empty one; if a user accidentally clicks this button leading the card to have no effect whatsoever, the user could be prompted to confirm they want to cast the spell in this way.