The only thing i like about Pre s6
They brought back Deathfire (kind of)
BUT
Graves has insane bust
Yas has too much crit
AP casters are virtually useless unless support
NO MANA POTIONS
it makes me cri 
3 Comments
The only champions I ever bought mana pots on we're on Gangplank first buy, and when I sometimes played support. Maybe you need to learn how to manage your mana pool better, or pick up an earlier mana/mana regen item (or at least the mana regen component)