Sensei's Divining Top + Elsha of the Infinite + Urza, Lord Protector

Sensei's Divining Top

Elsha of the Infinite

Urza, Lord Protector

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. Elsha's prowess ability triggers, giving it +1/+1 until end of turn.
4. Repeat

This elegant dance begins with Elsha of the Infinite, who grants you the vital ability to look at the top card of your library and cast noncreature spells right off the top. With Urza, Lord Protector on the board shaving {1} off the cost of your artifact spells, casting Sensei's Divining Top becomes completely free. You simply tap Sensei's Divining Top to draw a card and place it back on top of your library, and since Elsha lets you cast it directly from the top, you can repeat the process indefinitely for infinite card draw, a massive storm count, and an arbitrarily large Elsha of the Infinite powered by her prowess triggers.