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 Deep Wounds enables your core damage abilities like Mortal Strike and Arms Execute to deal additional damage by creating a Bleed on your target.

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.