Experiment Kraj, and Ioreth of the Healing House

Prerequisites

• Experiment Kraj on the battlefield
• Ioreth of the Healing House on the battlefield
• You control at least one additional legendary creature
• Ioreth of the Healing House has at least one +1/+1 counter on it
• Experiment Kraj and Ioreth of the Healing House do not have summoning sickness

Steps

1. Activate Ioreth of the Healing House's second ability by tapping it, untapping Experiment Kraj and any other legendary creature you control
2. Activate Experiment Kraj using Ioreth of the Healing House's second ability by tapping it, untapping Ioreth of the Healing House and any other legendary creature you control
3. Repeat

Results

• Infinite mana legendary creatures you control can produce
• Infinite untap of legendary creatures you control