Agatha of the Vile Cauldron + Cogwork Assembler + Gilded Lotus

Agatha of the Vile Cauldron

Cogwork Assembler

Gilded Lotus

How it works

1. Activate Cogwork Assembler by paying at most 3, creating a token copy of Gilded Lotus.
2. Activate the Gilded Lotus token by tapping it, adding three mana of any color.
3. Repeat.
4. If Agatha of the Vile Cauldron has power 5 or greater, this combo nets infinite mana and you can then target any other artifact(s) using Cogwork Assembler.

This loop turns Cogwork Assembler into a self-sustaining engine by dramatically slashing its hefty activation cost through Agatha of the Vile Cauldron's power-scaling discount. With Agatha boasting a power of 5 or greater, the Assembler's normally prohibitive copying fee drops low enough that Gilded Lotus can effortlessly foot the bill. Every time you pay to copy the Lotus, tapping the newly minted token yields a surplus of mana, fueling the next iteration and letting you generate infinite colored mana, infinite hasty artifact copies, and an endless stream of triggers.