I'm actually a strong supporter of this card over baby Buzzwole in anything that doesn't run Ultra Beast support (Beast Ring in specific) or likes to use it's GX attack early. Definitely my non-GX of choice in Zygarde.
Turn 1: DCE with diancie and choice band, 70 damage and 50% chance to paralyze
Later on after GX attack
Strong energy, diancie, DCE, and choice band, 190 for 2 attachments. OHKO ultra necrozma, buzzwole, and zoroark
Seems pretty decent for a non-GX 7th prize attacker. And mows over quad Hoopa