Editor's Note: Whenever Wizards releases a new Standard-legal set, Yoman5 challenges himself to build 50 decks using the new cards before the MTG Arena Early Access event. Below are all 50 of the decks he built for Core Set 2021, organized by format.

Standard

[[deck-embed-ext id="1373516"]]

[[deck-embed-ext id="1373517"]]

[[deck-embed-ext id="1373518"]]

[[deck-embed-ext id="1373519"]]

[[deck-embed-ext id="1373520"]]

[[deck-embed-ext id="1373521"]]

[[deck-embed-ext id="1373522"]]

[[deck-embed-ext id="1373523"]]

[[deck-embed-ext id="1373524"]]

[[deck-embed-ext id="1373525"]]

[[deck-embed-ext id="1373526"]]

[[deck-embed-ext id="1373527"]]

[[deck-embed-ext id="1373528"]]

[[deck-embed-ext id="1373529"]]

[[deck-embed-ext id="1373530"]]

[[deck-embed-ext id="1373531"]]

[[deck-embed-ext id="1373532"]]

[[deck-embed-ext id="1373533"]]

[[deck-embed-ext id="1373534"]]

[[deck-embed-ext id="1373535"]]

[[deck-embed-ext id="1373536"]]

[[deck-embed-ext id="1373537"]]

[[deck-embed-ext id="1373538"]]

[[deck-embed-ext id="1373539"]]

[[deck-embed-ext id="1373540"]]

[[deck-embed-ext id="1373541"]]

[[deck-embed-ext id="1373542"]]

[[deck-embed-ext id="1373543"]]

[[deck-embed-ext id="1373544"]]

[[deck-embed-ext id="1373545"]]

[[deck-embed-ext id="1373546"]]

[[deck-embed-ext id="1373547"]]

[[deck-embed-ext id="1373548"]]

[[deck-embed-ext id="1373549"]]

[[deck-embed-ext id="1373550"]]

[[deck-embed-ext id="1373551"]]

[[deck-embed-ext id="1373552"]]

[[deck-embed-ext id="1373553"]]

[[deck-embed-ext id="1373554"]]

[[deck-embed-ext id="1373555"]]

[[deck-embed-ext id="1373556"]]

[[deck-embed-ext id="1373557"]]

[[deck-embed-ext id="1373558"]]

[[deck-embed-ext id="1373559"]]

[[deck-embed-ext id="1373560"]]

Historic

[[deck-embed-ext id="1373562"]]

[[deck-embed-ext id="1373561"]]

Pioneer

[[deck-embed-ext id="1373563"]]

[[deck-embed-ext id="1373564"]]

[[deck-embed-ext id="1373565"]]