How to play Corvus manual against Osh 160

Corvus being from start team number 2 against Osh on level 160.
here is a guide how to play it manual
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in this video I will show how to play manual Corvus team with Aidan and Celeste against Osh, level 160.
I think Celeste here is not a key hero and can be replaced easy with another healer or even Armor artifact hero like Helios or Astaroth.
This video was recorded some months ago and I start to reveal all my secrets about Asgard on UA-cam.
I didn't have here maxed heroes and I bought an extra buff, Defense sphere override. This will help me to survive especially for the beginning of the fight. It won't affect the damage done by Corvus 3rd skill as it is based on Corvus health and not by the damage received.
One of the most important things in this battle, to keep it going and not get the nightmares, is to fire Heidi when all the spheres are up in front. This way Heidi will kill them and not miss any as from all the heroes here, only Heidi can kill the spheres.
Another important factor is to keep Celeste in her light form for more healing and then I fire her when ever she is full of energy for double mag attack artifact.
With Thea, I try not to fire her as soon as ready and only when needed to keep alive the allies as her 2nd Asgard skill will cover the allies with a shield that absorbs all the damage, this may affect the damage dealt by Corvus. It's very important not to fire Thea when spheres are up in front and you are killing them with Heidi and Albus is charging in that moment.
Thea shield will stop Corvus for a few moments from dealing that damage and in the result Albus will fire lower damage.
Another important moment for this set up is to keep an eye on the clock, as when it reaches to 20 or 19 seconds left, you must fire Albus to be able to have another Albus hit with the remaining time. This is probably the most hated by me part in this battle and it really makes it difficult to watch so many things happening in the same time.
You can see, Albus hit was under 2 millions here but I still have time for another shot.
If your Albus hits 3 and a half millions or more, than you played it right if it's less you need to improve on timings.
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Thanks

[@kaandervis6276]

Why the damage from Corvus does not dinimish?