Oracle

Legendary Artifact 

This spell costs 2 less to cast for each creature card in your graveyard.
Whenever a creature you control dies, put it on the bottom of its owner's library.
2B, T, Pay 2 life: Return target creature card from your graveyard to the battlefield. Activate only as a sorcery.

Tournooi-info

Legal in: Vintage, Legacy, Modern, Standard, Commander

Officiele rulings

2019-10-04 - wotc
To determine the total cost of a spell, start with the mana cost or alternative cost you're paying, add any cost increases, then apply any cost reductions. The converted mana cost of the spell remains unchanged, no matter what the total cost to cast it was.

2019-10-04 - wotc
The cost reduction ability reduces only the generic mana in the relic's cost. The colored mana must still be paid.

2019-10-04 - wotc
Once you announce that you're casting a spell, no player may take actions until the spell has been paid for. Notably, opponents can't try to change by how much a relic's cost is reduced.

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