mtg cards like fact or fiction - Commander Legends #396 (English) Put one pile into your hand and the other into your graveyard. Fact or Fiction (#333) (borderless)

Note that you essentially cant play around this in isolation, as its far too rare to put them on unless they have one

For two mana, this artifact has a three-mana activated ability that allows the Altar to be tapped to exile a creature under its owner's control in order to return any creature from their graveyard to the battlefield

You have to pay that cost each time the ability is used

Its also useful with your sacrifice outlets

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(2025-06-06) If another effect (or effects) modifies how much damage a source you control would dealby preventing some of it, for examplethe player being dealt damage or the controller of the permanent being dealt damage chooses the order in which any such effects (including Lightning's) apply