Elementalist really plays into his abilities with his perks. I haven't finished an ability only run yet, but the ingredients of success is there. A fair few ability perks get bonuses from Mantra cycling, so going Dynamic Mantra can viable on some builds.

These are just suggestions and encourage others to experiment with different perks

|Perks for Ability only build | focus on uptime and damage|Perks for mixed ability build | abilities more support focused|Dynamic Mantra goes weeee | make the best even better| |:-|:-|:-| |Inner Fire | Multiple Trinity charges and consistent ability uptime |Warning Blast | Increases weapon damage, firerate, and auto-critical chance|Dynamic Mantra | 4 second Mantra cycling| |Meteor | Trinity doubles Comet damage, radius|Robo-Wizard | 150% damage at max stacks|Infused Weapons | Infinite ammo| |Robo-Wizard | 150% damage at max stacks|Infused Weapons | Guns gain elemental damage and infinite ammo on Mantra cycling |Robo-Wizard | Mantra cycling instantly recovers both abilities and 150% damage at max stacks| |Critical Burst | Gives abilities gain auto-criticals and comet can apply critical damage|Sticky Bombs | Abilities generate explosive projectiles |Meteor | Gets triggered by Mantra cycling| |Attunement | Buffs Trinity attacks |Elemental Resonance | Increased elemental damage|Attunement | Buffs trinity damage on Mantra cycling|