the shire mtg card Magic Gathering: Secret Lair Tales of Middle Gandalf, Friend of the Shire

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A great aggro card and sometimes a nice support card in the same vein as Bloodghast as well

Honestly, looking at the card alone, it's not a card that can be used extensively, but the parts for life-gain decks themselves are available in the Standard environment, and I think it's possible to adopt it in a form that combines Orzhov sacrifice themes

Sothera, the Supervoid Singularity Foil While not a serialized card, this version of Sothera, the Supervoid appears in a small number of Collector boosters

You have to sacrifice four creatures when you cast it, but it turns every one of you swamps into a Tim (or Prodigal Sorcerer)

Since potential voltron is on the table a card like Cultist of the Absolute can make Vogar way harder to block or remove and youre ensuring you get his another creature dies trigger without having to slot a higher mana value sacrifice outlet