Shrieking Drake + Abaddon the Despoiler + Lotus Bloom + Transplant Theorist

Shrieking Drake

Abaddon the Despoiler

Lotus Bloom

Transplant Theorist

How it works

1. Cast Shrieking Drake by paying .
2. Shrieking Drake's cascade ability from Abaddon the Despoiler triggers, causing you to cast Lotus Bloom from your library since it is the only valid card to cast.
3. Shrieking Drake enters the battlefield, triggering itself, returning itself to your hand.
4. Activate Lotus Bloom by tapping and sacrificing it, adding .
5. Activate Transplant Theorist by paying 2, putting Lotus Bloom from your graveyard on the bottom of your library.
6. Repeat.

This brilliant loop relies on Abaddon the Despoiler to turn Shrieking Drake into a cascade engine, thanks to opponents having lost enough life to reduce your spell mana values to zero. As you repeatedly cast Shrieking Drake for a single blue mana, its enters-the-battlefield trigger forces you to return it right back to your hand, while Abaddon's Mark of Chaos Ascendant cleanly forces Lotus Bloom out of your library as your only valid cascade hit. Once Lotus Bloom enters, you sacrifice it for three mana to comfortably fuel the cycle, leaving Transplant Theorist to smoothly tuck the artifact from your graveyard back to the bottom of your library so the Drake can cascade into it all over again.