Take off auto and use arbiter reduce buff 

I encounter similar situations

If your team is desreasing turn meter on auto then the enemy cannot have a turn to get rid  of their unkillable

Go manual and stop decreasing the enemy turn meter

so,the HOLE IDEA of playing this game in PC,is to put auto mode on,minimize client,and do other thinks . agree or not?eventually,he give up at 25 min . around...and i put 

 my best time,at AUTO,when dont stuck at this one

i

Is it so hard to take 10 seconds to press 2 buttons?

I am starting to think all the news about global warming is fake..... rising sea levels has nothing to do with temperatures raising all over the world.... sea levels are rising because of all the raid players crying...

I agree with you, unlike the others apparently. Having unkillable champions in dungeon waves is extremely annoying, as it blocks people with certain team builds from using multi-battles at a reasonable speed. It's easy enough to quickly auto for a bit if you're just doing one auto battle at a time and paying attention to it, but in multi-battles you can't even temporarily manual anything and as you say the point is to go do something else in the meantime. 

Maybe, the problem is with you and not the Faction War wave?

I think your team set up is bad.

This is why you are having trouble vs. the wave on auto.

You don't really need Thenasil in your set up.

You can swap him out for a Crowd Control hero.

- You could use Shirimani to freeze the Paragon.

- Than nuke the Paragon to death so he never gets a turn.

All of which can happen on Auto.

WELL,you are actually right,but there is one tiny detail; i am a free to play ,and this heroes,are my everyone from this fraction

That's just how Paragon is designed to work. 

In turn you can use that skill mechanic to your advantage anyway. 

Just because that is how paragon works doesn't make it less stupid. He can't (really) kill anyone once he is alone, therefore having an unlimited unkillable is pointless. It only serves to force either a freeze/stun/remove buff etc, in a way unlike ANY other hero in the game. It is cheap, and has no intention to WIN the battle, so why is it there? It goes against the spirit of the whole game

I hate when this happens in Fire Knight. You can use 30 autobattles in Fire Knight. You can farm Fire Knight overnight. 

You play 3 faction war battles, then you are out of keys. It's not a night of farm lost. It's not hard to pay attention to 3 battles once a week. Also, you don't have to play the same stage more than once unless it's stage 20. (scrap that, it is 20)

Most of unkillable loops can be fixed with champion AI fixes, and fixes were announced as a major feature of January update, so we can hope.

To be clear - PVE enemy paragons don't have permanent unkillable, nor does any other enemy in the game, although player paragons can actually have a permanent unkillable, after booking their skill. The problem in cases like the above screenshot is that paragon simply never gets a turn at all, so even though his unkillable buff would expire the next turn, he just doesn't get to that turn. 

The solution is really only to remove champions with unkillable from dungeon waves / faction wars, or at least to use them only exceptionally and not on stages that people are likely to farm. 

Having a 2 turn unkillable with a 2 turn cooldown IS a permanent unkillable without specific moves to counter. The way i got around it was allowing a champ to get low health so he wouldn't refresh the unkillable. 

The point I'm making is - the game is about winning the battle, using attack, heal, defence etc to win - NOT stalemate, which is generally what an AI paragon aims for. 

I agree that it is in bad faith to include him knowing he can never get a turn ruining multibattle, but at the same time if you are late game enough to NEVER give him a turn, then that player is almost definitely capable of removing the unkillable in some manner. 

In conclusion - Paragon sticks out like a sore thumb as an enemy, which is annoying and nonsensical

Asking to nerf Paragon as FTP player is counter-productive (this is a polite way of saying "stupid"). He is the sole reason many FTP players can beat Spider 17 to 19. People have also discovered Spider-20 auto team with Paragon. All because of 3 fights a week. And paragon nerf won't solve anything beside this one FW stage. There are healing stalemates. There are other unkillable champs.

There is a solution to stalemates - auto loss after certain time or turn.

I dont think it should be a nerf per-se, but it is equally stupid (ps nice redundancy but nvm) to say that because something works that makes it a good aspect of the game. I currently struggle with spider myself, and am FTP, but that should be motivation to bring in/buff champions that support that aspect of the game (eg failed attempt with dark athel's aoe attack which isn't acc helpful) rather than a cheap, unusual, unlimited unkillable regen. Thats like saying you should use apothecary in arena because he can win solo battles in 25+ minutes, there should be/are better ways to achieve the same thing. 

There is a reason no other champ has this mechanic, and there is a reason paragon isn't especially highly regarded, because he isn't a good hero outside of this 1 quirk