Can I build a deck together with friends on TCGSwap?

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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?

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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.

Cosmog · McDonald's Collection 2017 6/12

Cosmog (McDonald's Collection 2017 6/12), None, Basic, 60 HP. Market price €1.42, unchanged this week. Illustrated by Megumi Mizutani. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

Cosmog (National Pokédex #789) first appeared in Pokémon Sun and Moon (2016). Its earliest English cards in our catalogue are from 2017: McDonald's Collection 2017, SM Black Star Promos, Sun & Moon.

More Cosmog printings

Card text

Dust Gathering — Draw a card

Weekly price history

Week	Market price
2026-W31	€1.47
2026-W32	€1.43
2026-W33	€1.56
2026-W34	€1.58
2026-W35	€1.58
2026-W36	€1.50
2026-W37	€1.50
2026-W38	€1.50
2026-W39	€1.42
2026-W40	€1.42

Printings & variants

Holo — $4.63

Price in context

Cosmog ranks #9 of the 12 priced cards in McDonald's Collection 2017. The median None in the set is €1.80. The 12 priced cards in McDonald's Collection 2017 are worth €31.91 together; this card is 4.45% of that. The set’s value is unchanged this week. Over the last 10 weeks the set’s value went from €30.75 to €31.91 (+3.8%).

Set value over 10 weeks · same 12 cards each week
Week	Set value
2026-W31	€30.75
2026-W32	€30.81
2026-W33	€31.23
2026-W34	€32.92
2026-W35	€32.97
2026-W36	€32.77
2026-W37	€33.91
2026-W38	€33.39
2026-W39	€31.91
2026-W40	€31.91

Other Cosmog cards

There are 12 other cards named Cosmog across 10 sets.

30th Celebration 078 (2026) · Common — €0.15
Celestial Guardians 085 (2025) · One Diamond — —
Celestial Guardians 171 (2025) · One Star — —
Promos-A 067 (2024) · Three Diamond — —
Celebrations 13 (2021) · Rare — €0.18
Unified Minds 100 (2019) · Common — €0.08
Cosmic Eclipse 100 (2019) · Common — €0.07
Team Up 69 (2019) · Common — €0.12
Cosmic Eclipse 99 (2019) · Common — €0.10
Ultra Prism 60 (2018) · Common — €0.08
Sun & Moon 64 (2017) · Common — €0.06
SM Black Star Promos SM42 (2017) · Promo — €0.47

Evolution line

Cosmog evolves into Cosmoem.

Cosmoem · Celestial Guardians

About the illustrator

Megumi Mizutani has illustrated 152 cards across 65 sets.

Jessie & James · Hidden Fates — €71.07
Magearna · XY Black Star Promos — €60.08
Bianca · Boundaries Crossed — €58.79
Morty's Conviction · Temporal Forces — €55.38
Silvally GX · Cosmic Eclipse — €48.32
N's Zoroark ex · Journey Together — €47.84
Lillie · Sun & Moon — €45.80
Steven · Ancient Origins — €39.71
Cheren · Boundaries Crossed — €39.22
Skyla · BREAKpoint — €36.41

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Questions

How much is Cosmog 6/12 worth?

Cosmog from McDonald's Collection 2017 (6/12) has a market estimate of €1.42, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Cosmog 6/12 rare?

It is a None from McDonald's Collection 2017, a 12-card set.

Is Cosmog 6/12 tournament legal?

Cosmog 6/12 has rotated out of the current formats.

Browse more Pokémon cards · All McDonald's Collection 2017 cards · Build a deck · Track your collection