do gold pokemon cards have gold backs

do gold pokemon cards have gold backs impulse bought my first foil card I found for $1 at an antique store, but im having trouble finding too much information about it online. can anyone tell me anything about Are these gold Pokémon cards

Name: do gold pokemon cards have gold backs impulse bought my first foil card I found for $1 at an antique store, but im having trouble finding too much information about it online. can anyone tell me anything about Are these gold Pokémon cards
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Description

Koma can sacrifice Serpents to tap a permanent and shut off its activated abilities or to give itself indestructible, giving practical use for Koma's Coil tokens in-game

You can only chose a given option once a turn, but it's not restricted to your turn, so a timely Auroral Procession or Unbury can create a surprise blocker or extra card advantage