This works with the same process as the Basalt Monolith + Rings of Brighthearth infinite mana combo but replaces Rings of Brighthearth with Kurkesh, Onakke Ancient and Mycosynth Lattice.
- Have all three permanents in play.
- Tap Basalt Monolith for .
- Activate the monolith's untap ability.
- With the ability on the stack, use any other mana source to pay for Kurkesh's triggered ability (Mana colour is fixed by the Mycosynth Lattice). This puts a second untap ability on the stack.
- Allow one untap to resolve.
- Tap Basalt Monolith for then allow the original untap to resolve.
- Repeat steps 2 - 6 using the mana generated.