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.
Cast Sensei's Divining Top from the top of your library by paying 1.
Kykar triggers, creating a 1/1 Spirit creature token.
Activate Kykar by sacrificing the Spirit, adding .
Repeat
This clever loop turns the unassuming Sensei's Divining Top into an endless engine by leveraging the passive abilities of your other permanents to cover its own costs. Crystal Skull, Isu Spyglass plays a vital foundational role here by granting you the ability to cast that very same artifact directly off the top of your library. Meanwhile, Kykar, Wind's Fury provides the crucial economic engine: every time you recast the Top as a noncreature spell, Kykar rewards you with a Spirit token that you can immediately sacrifice for red mana to pay for the Top's casting cost.