Champion concept: Bug, the living glitch

Hi, here is my champion concept,

Bug The living glitch

Bug is an Ap ranged mage for mid lane, capable of doing lots of damage, and providing utility for his team

Passive: Every 3 spellcast, his next non-ultimate spell has no cooldown. In addition, Bug gain 5% CDR, for each 100 bonus AP

Q-Glitched machine: Bug sends a ranged skillshot, that explods, dealing damage in a zone, and blinding the nearest ennemy of the explosion center

W-Glitched zone:Bug glitches a zone, where ennemies are slow, and rceive a DOT, with a (little) pourcentage of true damage

E-Glitched Protection: Passive: Bug builds MagicResist, based on his Ap.

Active: Bug consumes the bonus MR he gains from this ability, and knock backs ennemies around him, dealing damage based on the MR consumed to them. After he uses this ability, his bonus MR will build back in the next 30sec, and if he uses this ability while his MR has not fully build back, the ennemies strike will only be knocked back, and will not receive damage.

R-Ultimate Glitch:Bug creates a big round-shaped glitch, knocking back ennemies and ally that were in the zone, to the nearest border. After everybody is knocked back, nobody can enter the zone for 5sec. Only champions can't enter the zone, so if there are neutral monsters, or minions in the zone, they will continue to act normally.

Thx for readind, I hope you will like this champ concept, feel free to respond, say your word, or even if you want, suggest the CD/mana cost on the ability, and I did not put any picture or drawing, because I am not very good at drawing :D