Sensei's Divining Top + Traxos, Scourge of Kroog + A Realm Reborn + Madame Web, Clairvoyant

Sensei's Divining Top

Traxos, Scourge of Kroog

A Realm Reborn

Madame Web, Clairvoyant

How it works

1. Activate Traxos by tapping it, adding 1.
2. Activate Sensei'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.
3. Cast Sensei's Divining Top from the top of your library by paying 1.
4. Traxos triggers, untapping itself.
5. Repeat.

This loop transforms your library into an endless engine by leveraging Madame Web, Clairvoyant to cast spells directly from the top of your library. With A Realm Reborn granting your permanents the ability to tap for mana, Traxos, Scourge of Kroog pulls double duty as both a mana source and the historic key that untaps itself every time you replay an artifact. You tap Sensei's Divining Top to draw a card and place it back on top of your library, where you can immediately cast it again for one mana to keep the cycle spinning.