From what I remember about Poison Bio, the damage looks nice at first, but once you get to Zone 5 it really starts to lack in power like I said in the little blurb on the first page. Maybe it'll work fine for you, though :)

I haven't dealt a lot with Bio but the combo X is just amazing. However, I think there can be a powerful combo with poison Bio. Check it out. With acidic blood, Corrosion, Envenom, Sample Blood and Infect for Damage over time, its hard not to make a combo yourself right? Especially if you use both predator and Toxicant form at the same time and/or Agile Exposure. Maybe the poison is just not suited for Legends but nobody has been looking to the tree thoroughly, trying to combine the abilities. Have you?

I screwed around with abilities like Sample Blood and other toxics a lot when I was training to get level 30 against those monotonous ZPCI people. They were definitely cool, but they just didn't seem worth all the wasted ability points.

When I first played the game on easy as a Biological, I combined the tress quite often and it worked pretty well for me. However, I was still on easy mode :P

You could probably rack up a lot of damage by stacking up about 5 Envenoms with Mutant Glands and a Corrosion along with Toxicant Form  then finally doubling the output with Agile Exposure. Agile Exposure will do two jobs then, make your/Felicity's damage output double and then make your DOT from Envenom double too. The only trouble is getting your enemy to stand idly by while you use it!

Maybe you are right but I ntend after I finish the game with legend run, to look over to the poison build. Anyway, about the corruptor:

-If you kill the orb of Sanctuary then the Corruptor will show her True form right? But then you need to keep the Orb of Restraint alive at all costs because it casts a debuff on the corruptor called Restraint, which makes her attacks deal 4000 less damage. That way you can easily beat the corruptor in true form.

If you want to kill her the easiest way, just don't go for the orbs. I'm pretty sure I killed her in her true form too after I killed both orbs just by using the Withdrawal Combo.

i have been messing about with poison bio for a while now and have successfully completed a legend run with it. i did the math on paper and it seemed over powered. however a couple of glitches make it harder.
-at low levels envenom only deals damage for 7 turns
- your poison piercing has no effect of you DOT damage meaning none of you poison attacks do the intended damage. (but you cat get huge crits of the initial 15% (most damage in the game at zone 3/4) ) its still hugely powerful but not the total boss i had hoped for.

Thx for the wallthrough! Now, i have level 30 Biospeed zombie + over the Ashes.  Thx again!

i did the math on paper and it seemed over powered. however a couple of glitches make it harder.

Well, they're not necessarily glitches, as they're meant to be like that in the game.

Thx for the wallthrough! Now, i have level 30 Biospeed zombie + over the Ashes.  Thx again!

Glad it helped :)

My only problem was in zone 2 you said to get agile exposure instead of wound. why? agile exposure is so inaccurate. I wasted 3 turns trying to use that move in a fight once i decided to re-spec and replace it with wound i hope u dont mind me changing up the walkthrough a bit. but can you explain why use agile exposure over wound?

Overall, I just think agile exposure is a better move. To be honest, I really didn't think about using Wound at all. What are its effects, again? Bleed for some amount of strength for 3 turns and increase damage done by 65%? I think that's it fully upgraded too. I'd say either one is fine. I also like to use Agile exposure in combination with a stun. Agile Exposure is nice as well because it only has a one turn cooldown and I think deals more damage (without DOT added in).

In fact, I used to use Immobilize in the same position but it's a waste of ability points.

But yeah, it's really your choice and either one would probably work.