Immolating Gyre

A one-sided board wipe whose damage output is written entirely by your own graveyard. That inversion is the whole design pitch: most sweepers scale with the mana you pour into them, but this one asks nothing at cast time beyond the fixed six and instead invoices the game you have already played. Every burn spell, every cantrip, every counterspell you have already cast becomes a stored charge, so a spell-dense yard can push the X past anything a normal Blasphemous Act or Bontu's Last Reckoning would reach, while your own board stands untouched. The cost of that upside is an empty early game: with a bare graveyard it is a dead six-mana blank, and it wants you to have spent the first several turns filling the bin rather than developing the same threats it would otherwise protect. That tension (a wrath that rewards a spell-heavy shell but punishes the empty graveyard of an aggressive one) keeps it a build-around rather than a maindeck default. It also reads as a spellslinger payoff more than a control finisher, since the decks that naturally stockpile double-digit instants and sorceries are the ones already leaning on their yard as a resource. The asymmetry against planeswalkers is the quiet upside: a graveyard deep enough to feed it usually kills a walker outright in the same breath it clears the creatures.