Falco Spara, Pactweaver + Sensei's Divining Top + Elena, Turk Recruit + Shuri, Wakandan Inventor

Falco Spara, Pactweaver

Sensei's Divining Top

Elena, Turk Recruit

Shuri, Wakandan Inventor

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 on top of your library.
2. Cast Sensei's Divining Top by paying 0 and removing a counter from a creature you control.
3. Elena triggers, putting a +1/+1 counter on it.
4. Repeat.

This loop relies on Falco Spara, Pactweaver to bypass traditional mana costs by letting you cast spells from the top of your library simply by stripping a counter from a creature you control. With Sensei's Divining Top neatly sitting on top of your library after you activate its draw ability, you can recast it for free using Falco Spara's alternate cost. Meanwhile, Elena, Turk Recruit happily grows larger each time because Sensei's Divining Top counts as a historic artifact spell, while Shuri, Wakandan Inventor sits in play as a supporting piece whose cost reduction and copying abilities synergize with your artifact-heavy engine.