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But anyways ignoring the fun aspect of gifting, the whole mechanic is largely flavor text to most cards

though we dont yet know how many or exactly what cards this will apply to, we do know that the above card, Ravages of War, is one of them

This card lets you play lands from the graveyard, which means that you can replay your fetch lands as often as youd like, but it also lets you replay lands you have to sacrifice or just help make self-mill a more viable strategy

Retro Artifacts contains many cards that you can use all over the place

Just how mana decks are looking to pay a two-mana tax to dig for a permanent is up for debate though