Can I build a deck together with friends on TCGSwap?

Yes. Every deck on TCGSwap has a Collaboration Space. You can invite up to 5 friends; they can suggest card changes, discuss ideas, and playtest proposals. You review and apply suggestions before anything changes in your deck.

How does deck collaboration work?

It works like a pull request for your deck. Collaborators open the deck editor, make their proposed changes, and submit a suggestion with a note. You get notified, open the comparison view to see exactly what they changed, and choose to apply all, cherry-pick individual cards, or decline. Nothing changes in your deck until you approve it.

Can collaborators chat and discuss the deck?

Yes. The Collaboration Space has a shared group discussion thread for the whole deck, plus a per-suggestion Q&A thread for each proposal. You can @mention teammates and link specific cards inline.

Is collaborative deck building free?

Yes, collaboration is free for all TCGSwap users during beta. You can invite up to 5 collaborators per deck.

Does TCGSwap work for MTG, Pokémon, Yu-Gi-Oh and One Piece collaboration?

Yes. The Collaboration Space supports all four games — Magic: The Gathering, Pokémon TCG, Yu-Gi-Oh and One Piece. Format validation and card prices are included for each game.

Energy Switch · HS trainer Kit (Gyarados) 21/30

Energy Switch (HS trainer Kit (Gyarados) 21/30), None. Market price €0.42, unchanged this week. Illustrated by Wataru Kawahara. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

More Energy Switch printings

Energy Switch · Pitch Black — €2.08
Energy Switch · Mega Evolution — €0.10
Energy Switch · Crown Zenith — €0.06
Energy Switch · Scarlet & Violet — €0.09
Energy Switch · Silver Tempest — €5.23
Energy Switch · Sword & Shield — €0.11
Energy Switch · Celestial Storm — €0.40
Energy Switch · Sun & Moon — €0.12
Energy Switch · Generations — €0.26
Energy Switch · Roaring Skies — €22.27
Energy Switch · Furious Fists — €0.13
Energy Switch · Legendary Treasures — €0.25

Weekly price history

Week	Market price
2026-W36	€0.42
2026-W37	€0.42
2026-W38	€0.42
2026-W39	€0.42
2026-W40	€0.42

Printings & variants

Normal — $4.35

Price in context

Energy Switch ranks #15 of the 29 priced cards in HS trainer Kit (Gyarados). The median None in the set is €0.42. The 29 priced cards in HS trainer Kit (Gyarados) are worth €41.90 together; this card is 1% of that. The set’s value is unchanged this week.

Other Energy Switch cards

There are 23 other cards named Energy Switch across 23 sets.

Pitch Black 107 (2026) · Ultra Rare — €2.08
Mega Evolution 115 (2025) · Common — €0.10
Crown Zenith 129 (2023) · Uncommon — €0.06
Scarlet & Violet 173 (2023) · Common — €0.09
Silver Tempest 212 (2022) · Secret Rare — €5.23
Sword & Shield 162 (2020) · Uncommon — €0.11
Celestial Storm 129 (2018) · Uncommon — €0.40
Sun & Moon 117 (2017) · Uncommon — €0.12
Generations 61 (2016) · Uncommon — €0.26
Roaring Skies 109 (2015) · Secret Rare — €22.27
Furious Fists 89 (2014) · Uncommon — €0.13
Legendary Treasures 112 (2013) · Uncommon — €0.25

About the illustrator

Wataru Kawahara has illustrated 38 cards across 10 sets.

Charizard G LV.X · Supreme Victors — €117.29
Latias · HGSS Black Star Promos — €21.48
Latios · HGSS Black Star Promos — €15.64
Charizard G · Supreme Victors — €15.58
Gyarados · HeartGold SoulSilver — €13.91
Typhlosion · HGSS Black Star Promos — €13.47
Arceus · Arceus — €12.85
Jirachi · Unleashed — €5.36
VS Seeker · Supreme Victors — €4.65
Metagross · Unleashed — €3.94

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Questions

How much is Energy Switch 21/30 worth?

Energy Switch from HS trainer Kit (Gyarados) (21/30) has a market estimate of €0.42, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Energy Switch 21/30 rare?

It is a None from HS trainer Kit (Gyarados), a 30-card set.

Is Energy Switch 21/30 tournament legal?

Energy Switch 21/30 has rotated out of the current formats.

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