Not even; to do damage, we need to spend mana. Unless you're running WAY too much spirit, spending mana on DPS will eventually run you OOM. (If not, then you'd gain more DPS by reforging deeper into crit or haste.) It turns out that all the mana benefits attached to Solace actually contribute more damage over the course of a medium to long fight from allowing you to gear for less spirit and more DPS stats than the Mindbender contributes directly.