Attribution
Data sources
Every fact on CastHaven traces back to a primary source. This page credits them and will grow as coverage expands.
Tournament results & decklists
via MTG_decklistcache · GPL-3.0MTGO and paper event data via the community-maintained MTG_decklistcache project (GPL-3.0). Additional paper coverage will credit its platform of record when it goes live.
When TopDeck.gg event data lands, every page that uses it will carry visible credit and a link back to TopDeck — a condition of their data we’ll meet wherever it appears.
Card data & imagery
via ScryfallCard data and imagery courtesy of Scryfall. Card images and artwork are property of Wizards of the Coast and their artists; artist credits accompany artwork wherever it appears.
Scryfall data is never paywalled here. Card prices shown on CastHaven are Scryfall snapshots, always cited with the date we checked them.
Archetype definitions
via MTGOFormatDataDeck classification uses the community-maintained MTGOFormatData archetype definitions by Badaro and contributors. We consume the rules with attribution and don’t republish them; decks no rule matches are labeled honestly as unclassified.
Methodology
How data is collected, how decks are classified, and how every statistic is computed — including sample thresholds and what doesn’t exist yet — is documented on the methodology page.