This clever engine turns Sensei's Divining Top into a self-sustaining draw machine by leveraging cost reduction and mana generation. Foundry Inspector ensures your artifacts are cheap to deploy, while Forensic Gadgeteer creates a Clue token on cast and discounts your artifact abilities to help fuel the loop. Urza, Lord High Artificer steps in to tap that freshly minted Clue for blue mana, which you then use to pay for the first ability of Sensei's Divining Top before tapping it to draw a card and tuck itself back on top of your library. Finally, the discounted sacrifice ability of the Clue draws the Top right back into your hand, ready to be re-cast and restart the cycle indefinitely.