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How do custom decks work?
Posted: 28 August 2025, 18:08
by SunflourGully
Unexpected error: API ERROR#You don&039;t have or you filtered out all your valid decks. Please check your decks on Altered website and filters## (reference: GS1 28/08 19:06:08)
I got this error but I am not not sure how to fix it.
Are there rules to what is a valid deck?
Are you able to try decks if you don't own the cards or do you have to own all the cards you are playing with?
Re: How do custom decks work?
Posted: 29 August 2025, 18:55
by sliph1251
Go to
https://www.altered.gg/ and sign in with your account there. This is where you create custom decks using the cards scanned to your account. Can also trade/buy cards from the market. Most non-uniques can be bought for very cheap as there are an abundance of all of them.
Link this
altered.gg account to your
BGA account and then when you hit
Custom Decks, your sync'd account decks will load here.
SunflourGully wrote:Are there rules to what is a valid deck?
- 1 hero + 39 cards minimum
- No limit on commons (typically 21 remaining of 39)
- No more than 3 of any card name across all rarities.
Re: How do custom decks work?
Posted: 15 January 2026, 21:54
by WendiKins1
I also learned that alternate card art is not accecpted by BGA. For example, if you have Musubi Cards, it's a no go. The warning code was: ALT_MUSUBI_B_BR_04_R2 t . The ALT_MUSUBI_B_ is for the artist Musubi, followed by the specific card. The last part was a little hard to figure out which specific card it had tagged. I' used use a combo of 39cards.com & Altered.gg to figure out the "problem cards" to remove them when I was trying to play the decks I created. Knowing that information earlier would have been beneificial and time saving.