Because each player draws seven cards when a game begins, any player with fewer than seven cards in their deck will lose the subgame when state-based actions are checked during the upkeep step of the first turn, regardless of any mulligans that player takes. (See rule 704, “State-Based Actions.”)
July 25, 2025 · Edge of Eternities
If a merged permanent leaves the battlefield, one permanent leaves the battlefield and each of the individual components are put into the appropriate zone.
April 4, 2025 · Tarkir: Dragonstorm
rule 729.3 not present in this release
March 8, 2024 · Fallout
Sometimes a loop can be fragmented, meaning that each player involved in the loop performs an independent action that results in the same game state being reached multiple times. If that happens, the active player (or, if the active player is not involved in the loop, the first player in turn order who is involved) must then make a different game choice so the loop does not continue.