Priest
25 levels

Radiance Aura: (healing wave ability) Friendly players around the priest get healed over time every 3 secs for 1hp +1hp for each level (maxes at 5hp every 3 secs)
Light Well: +ability Drops a ward that heals teammates standing near it for 1hp a second...lvl 3 allows a second ward, level 5 allows a third ward. Wards stack. (yellow colored ward)
Light Bomb: Chance on hit to make enemies screen flash white (as if hit by a flash nade) lvl 1: 1% lvl 2: 2% ect up to 5% at lvl 5
Blessed By Light: Chance to Rez someone upon death. (would use the molecules chances for this, maybe with some tweaks)
Raining Rhapsody: heals all teammates who are alive and not near someone using a lace for 5hp +5hp per level for a max of 25hp (no range limit, can be used every 30 seconds, also not usuable at all if someone with a lace is nearby normal ability hampering range.)

another different +ability idea I had would be like healing bullets, where you could aim at teammates and heal them by shooting them. ive got a ton of ideas for races.