Hypothetical example only: A 5 minute Patchwerk encounter with no adds, no movement, no trinkets worn, no glove/cape enchants, no weakened phases. Do not interpret the table below as anything other than a hypothetical example for what would be an unrealistic set of conditions for an encounter.
1 Start the fight with a "Burn Rotation" until you're 12500 mana short
2 Use the first Mana Gem to go back to 100% mana
3 Continue the "Burn Rotation" until 35% mana (Approxinately 1.5 minutes)
4 Use Evocation to go back to 100% mana
5 Resume the "Burn Rotation" phase until around 35% again. Use the second Mana Gem as soon as off cooldown
6 Use the "Hover Rotation" via heavy Scorch Weaving to keep mana levels constant. Use your 3rd mana gem as soon as it's off cooldown to bring us up to 50% mana. (We're hovering at 50% mana to save up enough mana for the incoming Molten Fury Range, which we expect to last 1 minute).
7 As soon as the boss reaches Molten Fury range (35%) switch back to the "Burn Rotation".
8 Boss dies exactly as we run OOM.