Very fun and cool game! I was frustrated at the start with the 1st hero as it is hard to recover hit points and you don't understand the combos so well.
Playing with Gwen was alot of fun and is very rewarding tho :D
also coming back to the 1st hero after clearing the 1st level works better, but still if you don't draw defensive spells it gets iffy
It's very rewarding to understand combos and setups better and then make big chains, especially the banking system of mana is very cool!