Golem's Heart + Sensei's Divining Top + Gwenom, Remorseless

Golem's Heart

Sensei's Divining Top

Gwenom, Remorseless

How it works

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

This clever loop centers around Gwenom, Remorseless, whose attack trigger lets you cast spells straight from the top of your library by paying life equal to their mana value rather than their mana cost. With that alternate cost enabled, you can tap Sensei's Divining Top to draw a card and place itself back on top of your library, and then immediately recast the Top for just 1 life. Every time you cast that artifact, Golem's Heart triggers to give you back 1 life, completely mitigating the life payment required by Gwenom and letting you repeat the process endlessly to draw your entire deck and rack up an enormous storm count.