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.

Castform · Guardians Rising 105/145

Castform (Guardians Rising 105/145), Common, Basic, 70 HP. Market price €0.07, unchanged this week. Illustrated by sui. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

It changes its form depending on the weather. Changes in the temperature or humidity appear to affect its cellular structure.

Card text

Weather Teller — Search your deck for up to 2 Stadium cards, reveal them, and put them into your hand. Then, shuffle your deck.
Water Pulse 30 — Your opponent’s Active Pokémon is now Asleep.

Weekly price history

Week	Market price
2026-W31	€0.15
2026-W32	€0.14
2026-W33	€0.14
2026-W34	€0.14
2026-W35	€0.14
2026-W36	€0.14
2026-W37	€0.14
2026-W38	€0.07
2026-W39	€0.07

Printings & variants

Normal — $0.21

Questions

How much is Castform 105/145 worth?

Castform from Guardians Rising (105/145) has a market estimate of €0.07, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Castform 105/145 rare?

It is a Common from Guardians Rising, a 145-card set.

Is Castform 105/145 tournament legal?

Castform 105/145 is legal in Expanded.

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