Should You Purify Shadow Mewtwo in 'Pokémon GO'?

Should you purify Shadow Mewtwo in 'Pokémon GO'? The Pokémon makes a comeback during November's "Team GO Rocket takeover" limited time event.

Shadow Mewtwo Pokemon Go

In Pokemon Go, should we keep Shadow Pokemon unpurified? Why? - Quora

Pokemon GO Shadow Mewtwo guide: On whether or not to purify

Shadow Mewtwo Pokemon GO Wiki - GamePress

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Purifying Shadow Mewtwo into a Hundo for the Dex (I have more than

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