Haakon, Stromgald Scourge + Morophon, the Boundless + Nameless Inversion + Stone Calendar

Haakon, Stromgald Scourge

Morophon, the Boundless

Nameless Inversion

Stone Calendar

How it works

1. Cast Nameless Inversion from your graveyard, as it is a Knight card, by paying 0 due to Stone Calendar and Morophon, giving a creature +3/-3 until end of turn.
2. If the creature has toughness 0 or less, the creature dies as a state-based action.
3. Repeat as desired.

This clever loop turns graveyard-bound kindred spells into a relentless removal engine, anchored by Haakon, Stromgald Scourge granting the crucial permission to cast Knight spells from your graveyard. Because Nameless Inversion is a changeling, it benefits from Morophon, the Boundless naming "Knight" to wipe away its colored mana cost entirely, while Stone Calendar chips away at the remaining generic mana requirement to bring its cost down to zero. With these cost reducers holding the line, you can repeatedly fire Nameless Inversion from the graveyard to shrink opposing creatures' toughness to zero, completely shredding the battlefield without ever running out of ammo.