Magewright's Stone + Synod Artificer + Nyx Lotus

Prerequisites

• Synod Artificer does not have summoning sickness.
• Your have at least four devotion to any color.

Steps

1. 1Activate Nyx Lotus by tapping it, adding at least four mana of any color with which you have devotion.
2. 2Activate Synod Artificer's second ability by paying and tapping it, untapping Nyx Lotus and Magewright's Stone.
3. 3Activate Magewright's Stone by paying and tapping it, untapping Synod Artificer.
4. 4Repeat.

Effects

• Infinite mana among colors with which you have devotion
• Infinite untap of noncreature artifacts you control