Hey im a emerald 2 pantheon one trick who uses this build when the draft looks good. The build capatilises on the panths identity as a anticarry meaning u make the enemy carry unable to play.

This setup revolves around the three stack combo: w -> auto -> emp-q -> e -> e2. This allows you to oneshot all squishy champs and less tanky bruisers if you are ahead.

However this build has many weaknesses, into drafts with high cc you are unable to find an angle onto a squishy and is useless. Similarly into tanky comps you run out of steam after your initial combo also ending up useless.

But into a comp with more squishy champs you can make enemy carries life hell oneshotting on repeat. You want to play vision and sit in enemy jungle looking for picks from fog of war or in the sidelanes. Your biggest powerspike is at 3 items where you can kill squishy targets with one rotation of your ability so abuse this spike camping enemy jg or just flash onto the adc

Build specifics:
Huberis for snowball
Edge for cc that can cancel your w negating your combo. If enemy has low cc can opt to take sundered sky inplace of edge
Take mortal over serydas when antiheal is needed
Serpents when anitshield is needed
Oportunity and deadmans can be taken as boot replacement options depending on needing movespeed when engageing or disengaging
Take deathdance if you can get bursted before landing your combo