Treya, the Enlightened mage
Word on concept
After riot has thrown so many overloaded kits, I decided that I shall show, that when I am speaking against such concepts, its not because I can't create something similar. Treya should be my proof.
Lets talk about her identity first, shall we?
Treya is somewhere on boundary between mage and support. Her kit offers harass, sustain, burst and heaps of utility and crowd control. To be honest, I would claim her kit is overloaded with bull****, same as Gnar, Yasuo(before removal of flow % gain per dash), Braum, or our new champ, Azir. Don't get me wrong, overloaded kit does not mean it is op, because low numbers can make up for kit synergising too well with itself. However, usually, that means champion does not scale lineary, when getting ahead, but rather geometricaly(for those who do not understand, if he gets ahead = he carries 1v5).
Treyas kit however has different kind of compensation. She lacks real ultimate. She, similarily to udyr, does have four 5-levelable spells, but unlike him, they are not stance abilities, and 4th spell has double cooldown of others. Her passive makes her spell empower next spell to be stronger.
But now, to actual kit.
Treya does not have 3 abilities and ultimate, but does rather have 4 non-ultimate abilities. Fourth ability however has twice as long cooldown as other 3 abilities. Each ability can have up to 5 points in it, but you only have 18 points to share among them, so you can have either 5-5-4-4 or 5-5-5-3 combinations.