Crystal Ball, forgot about it. With Mysteria I would have had 30 mana.
2 Shadenfreude = 60 mana, crystal ball = 60 mana, 4 mana = 48 mana, mid battle level up: 30
We're talking about 45 fireballs, or 900 damages on lvl 5 with no fireball enhancement. Sorry, never realised that before