I always see yogg kill itself with a spell when there's a board full of minions. I feel like its highly unlikely to kill itself when there are so many targets. Is it me or is it just bad rng in general?
I have managed to play a 20-spell Yogg with him surviving. Keep praising, you'll get there.
I once played a 60 spell Yogg and he somehow survived o.O, it was also one of like 20 in 50 experiments I did in which he didn't kill me from Fatigue. (Bare in mind, I would always play him with 30 HP + at least 50 Armour.)
He cast Commanding Shout and somehow managed to not hit any board wipes like Twisting Nether. He also had far too many buffs to list, the list when you hovered over him scrolled past the bottom of the screen.
Interesting OP because when he's played against me he always clears my board, draws a bunch for my opponent, plays multiple secrets and buffs himself, he usually finishes with a Call of the Wild incase I was dead enough.
Yogg even post nerf seems to cast enemy only or self help spells like secrets way more consistently now. Tinfoil hat off.