Health Pools Progression
It took me many runs trying out different champs before I could take Winter Soldier down. With 4-Stars, 500 to 600 hits was required and I lose concentration after some 300+ hits. GM's health pool is some 18 times higher although when wounded, attacker received bonuses on attack (multiplied by each Token of Competence earned). I did not complete RoL in one continuous seating, and I should be prepared to take this fight in phases too.
Summoners who bested En Dwi Gast praised the game developer for a well conceived fight, that is fully skilled based.
Any one can cook, so the saying goes. Any champ can take this fight, but I am reading these few can't do; Captain America (Sam Wilson), Crossbones, Guardian, Guillotine (unless pre-fight activated) and Silver Centurion. Correct?
Also a huge risk to activate Magneto (HoX) pre-fight ability.
Now on to Grandmaster's abilities:









How should my roster look like
5-Star Doom, 5-Star BWCV, 5-Star rank 4 Mr Sinister (fast track rank just for this fight)

From these (all 5-Stars except for Dragon man) which other two to choose?
6-Star rank 2 Dragon-man, CMM, Venom, Colossus, Moleman, CAIW.
I start to hum a song.
Oh, oh, oh, oh, oh
Oh, oh, oh, oh, oh
Oh, oh, oh, oh, oh
Oh, oh, oh, oh, oh
I messed up tonight
I lost another fight
Lost to myself, but I'll just start again
I keep falling down
I keep on hitting the ground
But I always get up now to see what's next
Birds don't just fly
They fall down and get up
Nobody learns without getting it wrong
I won't give up
No, I won't give in till I reach the end
And then I'll start again