In terms of lore and gameplay fantasy, why does Tryndramere even exist?
I mean, we have already Olaf, the badass northland-berserker who is so pissed he defies death and crushes everything in super-reckless combat.
Also, that guy is at least unique in the way of "GLORIOUS DEATH! HERE I COME!".
Meanwhile Tryndramere is like the 100 times overdone "last survivor" of a disaster. Yawn. Even in gameplay Tryndramere feels like a Olaf-light. Both go into fight super reckless, but at least Olaf has the axe swings and super-damage hits. not exactly the best design, but still better than Tryndra's right-click rampage.
You really need to flesh out Tryndramere as a character more, right now he's a walking stereotype - and one that already exists in a better version too.
And give him a VGU while you're at it. Would be a good excuse to come back to the Freljord event btw... that one was never really concluded btw...