Alright so after this screenshot above was taken, I encountered some difficulties in some Cantha HM missions (mostly due to my "yolo let's just jump in and see how it goes" playstyle with this build (it's a lot of fun to test the limits! :D)), I changed one Me/A to Me/Mo with Heal Party and Healing Seed along with more damage signets. But now that I think I know what is doable and by giving the N/Mo Unyielding Aura, I think I can go back to 3 Me/A for ultimate DPS (honestly, it's no joke! I even added more poison sources on heroes to make sure there is as much of it as possible. Even though they wont have much attribute points invested in blood magic, they will last long enough for the Me/A to cast atleast Toxic Shock (they will only use it if there is poison so it works pretty well), whereas Signet of Deadly Corruption they use freely as long as there is atleast 1 condition on them (I try to put atleast 2 on them (Poison and Weakness) but we also have Blind (N/Rt), Cracked Armor (Me/N PI), and Bleeding (Me/N Keystone) while also having Oppressive Gaze for the extra Poison+Weakness that again fuels Signet of Deadly Corruption. With Psychic Instability and the amount of rupts from Keystone, it'll be very hard for them to remove conditions from that many targets in between the Keystone siege + Ravenous Lifesteal Bomber build that I play.
Or... Should I try something like this:
I just tested whether Deadly Paradox also works on the Signets, and it does. This will make (@17FC):
Signet of Toxic Shock (112 Damage; 10sec CD -> 8sec CD with Essence of Celerity)
Signet of Deadly Corruption (130 Damage; 8sec CD -> 6.4sec CD with Essence of Celerity)
Sadist's Signet (44hp per condition; 5.4sec CD -> 4.3sec CD with Essence of Celerity)
---> This will ensure that there are a lot more Signets to be used for the mesmer, while also providing some self-heal capabilities (up to 5 conditions with current setup -> max 220hp heal every 4.3sec) which is kinda insane tbh. I might run 1 of these instead of the Me/A illusion hero atm to test out the dmg etc. And since you also put attribute points into Deadly Arts, it wont be as bad if Symbolic Celerity gets stripped as the Deadly Arts signets will still be at 12(13 with cons).
Can also take Mark of Death instead of Sadist’s Signet. Since it has kind of a long cooldown, it’s also worth keeping Deadly Paradox. Energy wise should also be kinda okay, BiP will probably be necessary but still a decent way to kill harder enemies if there are healers.