I don't know if this is a good idea or a bad one, or just unworkable.
Having an extra unit on the battlefield is pretty powerful, they attract a lot of enemy attention, making the battles easier. But what if they were harder to summon?
Specifically, Elementals. What if you needed to have a surface of that element on the battlefield to summon the elemental on? You need to have a fire surface to summon a fire elemental, electrified for air, water or ice for the Ice elemental, and poison for the Earth elementals? That would limit spamming of elementals, wouldn't it?
Thoughts?
