Was watching Scratch's video showcasing the upcoming fusion for Ogryn champion Stokk... 

First thing is, he doesn't place HP Burn but he does activate it along with all poisons. So instantly we know he needs to be paired with a HP Burner. Before getting into his abilities, let's take a quick second to go over Vizug's A2 and Passive. A2 does HP Burn and 2 Poisons on all enemies. His Passive increases everyone's ACC by 10 per HP Burn and Poison out there with NO CAP on the bonus, with 1 Ally it increases all HP Burn and poison damage by 30%. With 2 Allies everyone deals 5% more damage to enemies per HP Burn or Poison.

Stokk's A3 places 3 Poisons and Weaken if targets have HP Burn, so that's 5 Poisons between him and Vizug right there. Plus HP Burn, that's 5x10x # of enemies for ACC increase. 

Stokk's A2 activates all poisons and HP Burns, then destroys Max hp by 3% per activated debuff so that's 18% Max HP destroyed for everyone. THEN his Passive says allies do 10% more damage to enemies with destroyed HP.

(EDIT: I don't think most Hydra heads, if any, can have their HP Destroys so Stokk's 10% bonus might not apply? Also I believe only 2 or 3 Hydra heads are able to be poisoned...)

So basically, once these two get rolling, enemies are taking 40% more damage (10%+30%) right there, not to mention Weaken being another 25%, if there's 3 total Ogryns (Vizug+Stokk+X). 

Now for Hydra, I'd say 3rd Ogryn is Uugo to be sure right? So that's Block Buffs, Decrease Defense, Weaken, Increase Acc, Increase Speed and +2 Turns on All Debuffs from Vizug's Faction A3 between those 3 Champions, getting anywhere from 5% to 30% bonus dmg depending on if Hydra heads have the poisons or just HP Burn

But the fact that Stokk's passive also says the damage from HP Burn and Poisons ignore Unkillable and Block Damage, I feel like they're trying to make him PVP Viable? Like, is Incinerate or Lethal Dose going to be worth it now? Vizug's passive is the 30% increase to the poison/hp burn damage, the Blessings are 200% poison dmg increase or 100% Hp burn increase... Is Poison Damage even reduced in Arena or does it just do the flat 5%... it reads like it does? So that would be 15% with Lethal Dose, possibly 20% depending on how Vizug's passive works (either additive or multiplicative). 5 Poisons going off at once would theoretically be 100% Max HP and that's not even getting into the 4% Max HP loss from HP Burn, times 4 people (3% + 30% from Vizug so 4% roughly) so that's 16% max HP loss across the board when Stokk does his A2 from HP Burn and then lets say, conservatively 17% Max HP per poison...

So 16% + 85% (17%x5) is 101% Max HP. Ignoring Block Damage and Unkillable... I think this is viable yes?