Straight up mage guy
Seriously, most of the mages in this game are themed, want an ice mage? Anivia and Lissandra, raw power mage? Xerath is your guy, Fire mage? welcome to brand. It makes me kind of sad that there's no "Average" mage champion, and by average I mean un-themed, their skills are just the average mage spells, like a fire spell, an ice spell and a thunder spell.
There are so many things that can be done with just a straight up mage guy, hit your thunder spell on a target afflicted with your ice spells debuff to shatter the ice for some AOE damage, hit your ice spell on someone afflicted with your fire spells burn to remove the burn and stun them for a second (you know, cause going from extreme heat to extreme cold is probably gonna mess your body up a bit and ruin your motor skills).
Your ult could just be a spell combiner, use it then press the buttons for the skills you want to combine and boom, combined skill with even more possibly spell combo effects to add, like combining your ice and fire spells to make a frozen fire ball that detonates on hit, burning and slowing people hit.
The possibilities for a straight up mage guy (Yes, I do love saying this) champion are so good to not want, but then again, I grew up with final fantasy 1 and my favorite class was the black mage, so it's mostly just me wanting something old timey to enjoy :/ I feel old now.
