Reiterating some points by prsas.
1. No sound makes the game feel strange.
2. Having the controls on screen is unnecessary as well as the spells at the bottom.
3. Might be intentional, but I noticed the icicle is stationary, as in if you make it go off and run past an enemy it stays where you fired it off. Icicles are also weaker than I expected, since there's more of the ability being thrown, not sure how to explain it. There's multiple icicles and it takes two and a half casts to kill an enemy, like the boulder, 2 hits. I don't see myself using lighting either, I'll give the game another try since I haven't gotten two far, I've only collected 2 keys before I died.
Anyway, I might just not be good at these kinds of games, but I die pretty quick and don't make much progress often. I saw that the LL spell heals you, but I wasn't able to find that in my short playthrough.