How to heal Patchwerk
1. Armor buff on tank before pull (rank 1 heal that splashes to rest of tanks with 8-set EF)
Start casting before boss reaches the raid. Just let first heals at pulls go through (for safety and you are full mana).
2. Start casting your heal that lands for about 2-2.5 k HP.
IF Tank is topped at 0.3 sec left of casting stopcasting. (Stop casting by moving(not jumping) or having a /stopcasting macro). Immediately start a new heal.
3. Use consumables as soon as you are missing more mana than they can give, start with Major Mana Potion then Rune.