Sensei's Divining Top + Traxos, Scourge of Kroog + Mystic Forge + Enduring Vitality

Sensei's Divining Top

Traxos, Scourge of Kroog

Mystic Forge

Enduring Vitality

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 ingenious engine relies on Mystic Forge letting you play Sensei's Divining Top directly from the top of your library for a single mana, while Enduring Vitality turns Traxos, Scourge of Kroog into a mana source that pays that exact cost. When you tap Traxos for mana, you can draw a card by putting Sensei's Divining Top on top of your library, and casting it right back out triggers Traxos to untap itself. Because Mystic Forge gives you constant access to the top card of your library, this loop can be repeated indefinitely to cycle through your deck and rack up endless artifact triggers.