samurai shield card sleeves Robot Mtg Sleeves Samurai - Etsy

Indomitable Creativity (red), Jund (black/red/green), Death's Shadow (black/red/blue), Rakdos Midrange (black/red), and more decks make use of this discard spell to absolutely hose opponents playing burn or other hyper aggressive strategies

Here is an overview of the most important versions and their current estimated values

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Can You Bargain a Spell Multiple Times

If you do manage to pull off the above combo and have a card like Mana Reflection in play then you're going to get infinite mana as well

Enchantments that do the same thing (draining life, paying life to draw cards or obtain resources) tend to add up