Dialga and Mega Gengar raid counters. Top general non shadow counters via pokebattler.com : r/TheSilphRoad

*TOP* MEGA GENGAR Raid Counters Guide in Pokemon Go

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Professor Winster's Poké-School and Research Lab

Mega Gengar Raid Guide

Professor Winster's Poké-School and Research Lab

Mega Gengar Raid Guide

Dialga and Mega Gengar raid counters. Top general non shadow

Giratina Origin raid guide. Keep your party going. Top non shadow

Pokemon GO Mega Gengar raid guide: Weaknesses, best counters, and more

Mega Gengar Raid Guide

Guzzlord and Mega Gyarados raid guides. Top non general shadow