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From $2.50
'At the beginning of each player's upkeep, that player sacrifices an artifact, creature, or land of their choice.
From $16.75
'{T}: Add {C}.
{3}, {T}: Add {B} for each basic Swamp you control.
From $0.75
'At the beginning of each player's upkeep, that player sacrifices an artifact, creature, or land of their choice.
From $7.25
'Destroy each nonland permanent with mana value 2 or less. Add {B} or {G} for each permanent destroyed this way.