If a Magic subgame (see rule 729) is restarted, the main game is unaffected. Main-game effects that refer to the winner or loser of the subgame now refer to the winner or loser of the restarted subgame.
July 25, 2025 · Edge of Eternities
rule 727.6 not present in this release
April 4, 2025 · Tarkir: Dragonstorm
A subgame can be created within a subgame. The existing subgame becomes the main game in relation to the new subgame.
February 2, 2024 · Murders at Karlov Manor
rule 727.6 not present in this release
April 14, 2023 · March of the Machine
If a loop contains an effect that says “[A] unless [B],” where [A] and [B] are each actions, no player can be forced to perform [B] to break the loop. If no player chooses to perform [B], the loop will continue as though [A] were mandatory.
November 18, 2022 · The Brothers’ War
rule 727.6 not present in this release
October 7, 2022 · Unfinity
If a loop contains an effect that says “[A] unless [B],” where [A] and [B] are each actions, no player can be forced to perform [B] to break the loop. If no player chooses to perform [B], the loop will continue as though [A] were mandatory.