Originally Posted by Mars Ultor
If he gets fed, does he still become a beast?
As someone that's faced plenty a fed GP on 3s, he becomes a force, but not in the same sense as Jax, Olaf, Irelia, Riven, Swain, Wukong, Vi, Jayce, Darius when he's fed. GP has to come to a six-item standpoint just to compete with them. He's more of a Pantheon type snowballer, where it's still more than possible to comeback if he's the only one doing well (particularly if he just builds damage). If GP gets ahead, he wants to end it as fast as possible.
If he builds mostly dps than he's pretty squishy and will die to focus (a less farmed/fed Darius, Olaf, Jax... even Sion can still dunk him 1v1 and hard CC/knockups will wreck him in teamfights).
If he builds tanky he doesn't do very much damage (compared to other melees) but has much more survivability, which in this case why not just use someone with more CC and mobility?
Imo his late game scaling isn't too good (no hard CC, true damage, %hp damage, no gap closer, ult stops hurting after a certain point, passive doesn't scale, etc).