Sanity Break: Cthulhu sends out a terrifying blast of energy, dealing damage to all enemies hit and reducing their Attack Speed. Enemies hit by this ability also do reduced damage to Cthulhu for 6s.
This ability applies 1 stack of Torment, 2 if the enemy hit is facing Cthulhu or Fears them instead if they are afflicted with Insanity. Successfully consuming Insanity permanently increases the base mitigation of this ability.
Ability Type: Cone, Fear, Damage
Damage:
90 /
140 /
190 /
240 /
290 (+40% of your Magical Power)
Attack Speed Slow:
20 /
22.5 /
25 /
27.5 /
30% for 3s
Fear Duration: 1.5s
Damage Mitigation: 20% + 0.5% (Max 30%)
Cost: 60
Cooldown:
14 /
13 /
12 /
11 /
10s
Sever (Ultimate Form): Cthulhu swipes down at the ground beneath him, creating 3 large projectiles. These projectiles damage enemies and apply a stacking Protection Reduction debuff. This ability does not proc item effects.
Ability Type: Line, Debuff, Damage
Damage:
100 /
140 /
180 /
220 /
260 (+25% of your Magical Power)
Protection Reduction: 4% stacking up to 4 times
Debuff Duration: 5s
Cost: 0
Cooldown: 1s
Okay, so you're going for a support build. First thing to point out, Cthulhu isn't probably the best choice for Supp even though he's a Guardian. His normal role is Solo. With that out of the way, he's not terrible in Supp, and so if you're going for that, then here are my comments: