Sensei's Divining Top + Horizon Chimera + Gwenom, Remorseless

Sensei's Divining Top

Horizon Chimera

Gwenom, Remorseless

How it works

1. Activate Sense's Divining Top's second ability by tapping it, causing you to draw a card and put Sensei's Divining Top on top of your library from the battlefield.
2. Horizon Chimera triggers, causing you to gain 1 life
3. Cast Sensei's Divining Top from the top of your library by paying 1 life.
4. Repeat.

This loop is a masterclass in card-draw recycling, using Horizon Chimera's triggered ability to completely offset the cost of casting spells off the top of your library. By tapping Sensei's Divining Top to draw a card and place itself back on top of your library, you trigger the Chimera to gain you 1 life. This life gain is crucial because Gwenom, Remorseless allows you to cast Sensei's Divining Top directly from the top of your library by paying 1 life instead of its mana cost, immediately replacing the life you just gained and returning the Top to the battlefield ready to repeat the process.