Blood Funnel + Memory Crystal + Judith, Carnage Connoisseur + Seething Anger + Electro, Assaulting Battery

Blood Funnel

Memory Crystal

Judith, Carnage Connoisseur

Seething Anger

Electro, Assaulting Battery

How it works

1. Cast Seething Anger with buyback by paying . Electro, Blood Funnel and Judith trigger.
2. Resolve the Electro trigger, adding .
3. Resolve the Judith trigger, creating a creature token.
4. Resolve the Blood Funnel trigger, causing you to sacrifice the creature token.
5. Resolve the Seething Anger spell.
6. Repeat.

This loop hinges on reducing the cost of Seething Anger to a single red mana using Memory Crystal for the buyback and Blood Funnel to discount the spell itself, allowing you to cast it repeatedly. As you cast Seething Anger, Electro, Assaulting Battery retains your unspent red mana while kicking back an extra red mana each time, and Judith, Carnage Connoisseur reliably churns out a 2/2 red Imp creature token with every instant or sorcery cast. That token is then immediately sacrificed to satisfy Blood Funnel's counter-trigger, fueling an endless engine of sacrifices, magecraft triggers, and lethal damage.