Haste increases attack and spell casting speed, adds additional damage and healing to DoTs and HoTs, and reduces the GCD.

Mastery provides a passive bonus to your character based on your specialization. Mastery Starlight increases damage of core abilities like Moonfire and Sunfire as well as increasing the effects of your Lunar Empowerment and Solar Empowerment.

Intellect increases the damage and healing done by your spells.

Versatility increases your damage, healing, and absorption done and decreases damage received.

Critical Strike increase the chance for your spells and attacks to critically hit for additional damage and healing.