Offering

Offering is a keyword ability that allows a player to sacrifice an appropriate permanent to cast a card with Offering as though it had flash and at reduced mana cost. It was introduced in Betrayers of Kamigawa in the five card "Patron" cycle. It reappeared in The Brothers' War commander decks as a one-off, over seventeen years after its last appearance.
==Rules==
==Rulings==
*Sacrificing the permanent for the offering is part of the announcement of the spell. No player has priority to respond to an offering until after the creature spell is on the stack.
*You may sacrifice only one permanent when using the offering ability. Multiple sacrifices aren't allowed.
*Effects that don't allow a player to cast creatures also stop a player from using the offering ability.
*Using the offering ability changes the normal result when calculating total costs [409.1f].
*With [Object] offering, you may sacrifice an [Object] with a converted mana cost of 0. You have to pay the full mana cost for the Patron, but this allows you to cast it whenever you could cast an instant.
*Generic mana in the sacrificed permanent's mana cost can only reduce generic costs. Colored mana in the sacrificed permanent's mana cost reduces colored then generic costs. For example, offering a Fox that costs would reduce <c>Patron of the Kitsune</c> () to . Offering a Fox that costs would reduce <c>Patron of the Kitsune</c> to .
*The cost reduction is calculated after cost increases. A <c>Patron of the Kitsune</c> with a <c>Sphere of Resistance</c> on the battlefield would cost . Offering a Fox with a mana cost of would cover all of the Patron's cost to cast.
*Offering reduces the total cost of a spell. The mana value of the spell remains the same.
==Patron Cycle==
*<c>Patron of the Akki</c> Goblin offering
*<c>Patron of the Kitsune</c> Fox offering
*<c>Patron of the Moon</c> Moonfolk offering
*<c>Patron of the Nezumi</c> Rat offering
*<c>Patron of the Orochi</c> Snake offering
==The Brothers' War Commander==
*<c>Blast-Furnace Hellkite</c> Artifact offering
==Examples==
==See also==
*Emerge