Is there any life in the idea that adding classes of Monster, such as Attacker, Tank, Support, Denier (much like what you would find in MOBA-style games), will add anything different to the metagame of Monster Legends?
Dungeon and War restrictions could include class instead of element/rarity/book. This could mean we fight in a war with DENIER/DENIER/DENIER.
This could easily be added to the game without too much stress, but I wonder if this is the direction SP want to go in.