Displacer Kitten, Archaeomender, Welding Jar, and Lotus Petal

Prerequisites

• Displacer Kitten on the battlefield
• Archaeomender on the battlefield
• Welding Jar in hand
• Lotus Petal in the graveyard

Steps

1. Cast Welding Jar by paying
2. Displacer Kitten triggers, blinking Archaeomender
3. Archaeomender enters the battlefield, returning Lotus Petal from your graveyard to your hand
4. Activate Welding Jar by sacrificing it, regenerating target artifact
5. Cast Lotus Petal by paying
6. Displacer Kitten triggers, blinking Archaeomender
7. Archaeomender enters the battlefield, returning Welding Jar from your graveyard to your hand
8. Activate Lotus Petal by tapping and sacrificing it, adding one mana of any color
9. Repeat

Results

• Infinite colored mana
• Infinite ETB
• Infinite LTB
• Infinite storm count