As mentioned in the 'Notes' your main priority is boon corruption:
- Manifest Shade (F1), due to Unending Corruption simply spawning the shade will corrupt 1 boon per target, cap is 3 or 5 per shade.
- Nefarious Favor (F2), due to Path of Corruption the shade(s) will corrupt 1 boon per target, cap is 3 or 5 per shade.
- Death Shroud (F5), due Spiteful Spirit the shade(s) you will corrupt 2-4 boons (600 radius)
- Well of Corruption, 5 boons per second for 5 pulses (=seconds)
- Ghastly Breach, 5 boons per second for 5 pulses (=seconds)
- Trail of Anguish and Sand Swell, both strip 1 per second, but are less reliable due to their main usages.
- Devouring Darkness (Scepter #3), 3 boons corrupted
- Unholy Feast (Axe #3), 2 boons corrupted
- Enfeebling Blood (Dagger #5), 1 boon corrupted
The above can be combined in several ways, I will list some of the more common ways:
- small bomb (every 10-15 sec): Manifest Shade -> Devouring Darkness + Nefarious Favor (you can F2-F5 during casting other skills, such as Devouring Darkness) + Sand Cascade (F3, extra damage+barrier), 2 corrupts + damage, more corrupts if another shade is up already
- big bomb (every 30-40 sec): Well of Corruption, cast Shade #1 (if [small] cast shade #2 if possible) -> be in 600 range (can use Sand Swell) -> Unholy Feast while casting F2+F3+(F4)+F5 -> try fitting Devouring Darkness in here before going to Axe/x
- if the situation allows for it use Ghastly Breach during the big bomb
- use Devouring Darkness in combination with any of these bombs, try to prioritize this skill since it corrupts the most boons
- use Unholy Feast in combination with any of these bombs, try to be on Axe when in range as much as possible.
- try to combine corrupts as much as possible, more corrupts at the same time is generally a good thing
Scepter tips:
- spam #1 on anyone in range
- use #2 as AoE damage, so in combination with any of the shade spikes, it does considerable amount of damage.
- use #3 whenever in range and whenever you can combine it with your corrupt spikes.
Dagger tips:
- save #4 for cleanse, keep in mind it can get reflected though.
- use #5 in combination with Devouring Darkness if possible
Axe tips:
- spam #1 on anyone in range
- use #2 on low targets in range, esp with Lesser Spinal Shivers proccing you can 10k-0 other scourges in 1.5 sec
- use #3 when in range in combination with small or big bomb
Torch tips:
- use #4 as additional damage when spiking in 600 range
- use #5 when focussing a single target
Staff tips:
- generally you use Staff #2, Staff #3 and Staff #5 for pressure
- save Staff #4 for condi cleanse, it's the strongest cleanse you have, with a maximum of 15 condi's cleansed (transfers 3 per target)
Aim for 60-90 corrupts per minute.