Sensei's Divining Top + Enthusiastic Mechanaut + Fateful Discovery

Sensei's Divining Top

Enthusiastic Mechanaut

Fateful Discovery

How it works

1. Cast Sensei's Divining Top by paying 0 due to Enthusiastic Mechanaut.
2. When Sensei's Divining Top enters, Fateful Discovery triggers.
3. Holding priority, 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.
4. Resolve the Fateful Discovery trigger, causing you to draw Sensei's Divining Top from your library
5. Repeat

This clever loop transforms a humble top into an engine of endless card draw by exploiting the interaction between cost reduction and library manipulation. With Enthusiastic Mechanaut discounting your artifact spells down to zero mana, you can cast Sensei's Divining Top for free over and over again. As the Top enters, Fateful Discovery triggers to reward your artifact's arrival, but you respond by tapping the Top to draw a card and slide it back onto the top of your library. When the Fateful Discovery trigger finally resolves, it neatly draws that same Sensei's Divining Top right back into your hand, ready to be recast and repeat the entire sequence.