Sensei's Divining Top + Herald of Kozilek + The Lunar Whale

Sensei's Divining Top

Herald of Kozilek

The Lunar Whale

How it works

1. Activate Sensei's Divining Top by tapping it, causing you to draw a card and put Sensei's Divining Top on top of your library.
2. Cast Sensei's Divining Top from the top of your library by paying 0.
3. Repeat

This elegant loop transforms Sensei's Divining Top into a free self-casting engine by leaning entirely on cost reduction and library top-deck manipulation. Herald of Kozilek provides the crucial discount that makes the artifact's casting cost completely free, while The Lunar Whale grants you continuous vision of your library's top card and the ability to play it after attacking. By tapping Sensei's Divining Top to draw a card and place itself on top of your library, you can immediately cast it again for zero mana, generating infinite card draw and storm count as you cycle the top over and over.