Abandoned Sarcophagus + Infinite Reflection + Hollow One + Reckless Barbarian

Abandoned Sarcophagus

Infinite Reflection

Hollow One

Reckless Barbarian

How it works

1. Cast Hollow One either from your hand or from your graveyard by paying at most 1, causing it to enter the battlefield as a copy of Reckless Barbarian due to Infinite Reflection.
2. Activate Hollow One by sacrificing it, adding .
3. If you cast Hollow One from your graveyard, Hollow One is not exiled by Abandoned Sarcophagus due to Infinite Reflection removing Hollow One's cycling ability.
4. Repeat.

This fascinating loop revolves around Infinite Reflection transforming your team into copies of Reckless Barbarian, turning Hollow One into a renewable source of red mana when cast and sacrificed. Because Infinite Reflection overwrites Hollow One's text box entirely, Hollow One loses its native cycling ability, which cleverly circumvents Abandoned Sarcophagus's exile clause and allows you to repeatedly recast Hollow One from the graveyard. Meanwhile, the discount from Hollow One's own cycling ability (or any other discards) reduces its mana cost down to nothing, letting you sacrifice the copied creature over and over to generate infinite red mana, death triggers, and storm count.