Abandoned Sarcophagus + Infinite Reflection + Hollow One + Blood Vassal

Abandoned Sarcophagus

Infinite Reflection

Hollow One

Blood Vassal

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 Blood Vassal 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 clever loop transforms your discard-focused threats into a self-sustaining mana engine, starting with **Abandoned Sarcophagus** granting you permission to cast **Hollow One** right back out of your graveyard. Thanks to **Infinite Reflection**, every nontoken creature you control—including that newly cast **Hollow One**—enters the battlefield as an exact copy of **Blood Vassal**, stripping away their original text boxes. This means your recast creature loses its native cycling ability, cleverly bypassing **Abandoned Sarcophagus**'s replacement effect that would normally exile it upon leaving the stack. You can then immediately sacrifice the resulting **Blood Vassal** copy to generate `{B}{B}`, fueling the loop to produce infinite black mana, death triggers, and storm count at your whim.