Rationale of Maldraxxus

3 pieces: Set: Increases your out-of-combat regeneration in outdoor Shadowland zones. While in your Covenant's realm, the regeneration amount is increased.

5 pieces: Set: While Fleshcraft is active your Intellect is increased by 100.

8 pieces: Set: Killing an enemy reduces Fleshcraft's cooldown by 3 sec and your Critical Strike rating is increased by 35, stacking 5 times.