I'm not looking forward to a 15 minute boss fight after god knows how long it takes to get there. 15 minutes is almost 2 full clears of Corrupted Gauntlet.
You want to get Zuk under 600hp as fast as possible so the set timer pauses. If you kill the mager first it's just wasting time, so it's better to pray mage and bring Zuk under 600hp before killing it.
