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.

ハピナスex · 変幻の仮面 121/101

ハピナスex (変幻の仮面 121/101), Ultra Rare, Stage1, 300 HP. 相場 €2.83, 今週 −3.4%. イラスト PLANETA Tsuji. 価格はTCGPlayerとCardmarketによる推定値であり、保証されたものではありません。

カードテキスト

Ability: ハッピースイッチ — 自分の番に1回使える。自分の場のポケモンについている基本エネルギーを1個選び、自分の別のポケモンにつけ替える。
おんがえし 180 — のぞむなら、自分の手札が6枚になるように、山札を引く。

週ごとの価格推移

週	相場
2026-W35	€3.02
2026-W36	€2.92
2026-W37	€2.93
2026-W38	€2.93
2026-W39	€2.83

よくある質問

ハピナスex 121/101の相場はいくら？

変幻の仮面 (121/101)のハピナスexの推定相場は€2.83です（今週 −3.4%）。価格はTCGPlayerとCardmarketによる推定値です。

ハピナスex 121/101のレアリティは？

変幻の仮面（全101種）のUltra Rareです。

ハピナスex 121/101は大会で使える？

ハピナスex 121/101はStandardで使用できます。