The "legend rule" doesn't apply.

Permanents enter tapped.

Fumiko has bushido X, where X is the number of attacking creatures. (Whenever this creature blocks or becomes blocked, it gets +X/+X until end of turn.) Creatures your opponents control attack each combat if able.

{T}: Heartless Hidetsugu deals damage to each player equal to half that player's life total, rounded down.

Lands don't untap during their controllers' untap steps. At the beginning of each player's upkeep, that player untaps a land they control.

Sacrifice this creature: Prevent all combat damage that would be dealt this turn.

Whenever a creature you control deals combat damage to a player, add that much {G}. Until end of turn, you don't lose this mana as steps and phases end.

At the beginning of each player's upkeep, that player adds {G}{G}{G}. Until end of turn, they don't lose this mana as steps and phases end.