Pantheon is a nerfed version of his former self
Overall: His Q damage Same base damage Ad scaling lowered from 165% bonus Ad to 100% bonus AD Cooldown : From 4 seconds to 10 seconds(5 when tapped)
W: Less base damage, only does better damage when empowered
E: Worse scaling and Worse base damamge on higher levels, not to mention huge cooldown nerf the CD wa smore than doubled
Only his Ultimate has better damage... and is slower to cast than the old ultimate and doesn't slow, AND has a much bigger CD. What he has gained are the empowered W which I don't think makes up for the damage nerfs, and the shield protection.
Pantheon is both worse early game and scales worse, and the numbers are not lying