Spells! Spells...spells...spells!

[Betelgeuzah]

2. Debuff spells
Where did they go? Choke, Rasp, Frost, Burn, etc. I miss debuffing. It doesn't seem like a very deep game without the option of using such spells regardless if you want to argue they're overly useful or not.
And never forget Tractor!

Nothing makes a game deeper than a bunch of useless skills that exist just for the sake of having them regardless of utility.

Plus the amount of inferior choices is what can make the game truly stand out!