Ioreth of the Healing House + Tidewater Minion + Card with "The Ring tempts you"

Prerequisites

• Ioreth and Tidewater Minion do not have summoning sickness.
• There is another legendary creature on the battlefield.
• Card with "The Ring tempts you"

Steps

1. 1If Tidewater Minion is not your Ring-bearer, use the card that causes the Ring to tempt you to cause Tidewater Minion to become your Ring-bearer, thus making it legendary.
2. 2Activate Ioreth's second ability by tapping it, untapping Tidewater Minion and another legendary creature.
3. 3Activate Tidewater Minion by tapping it, untapping Ioreth.
4. 4Repeat from step 2.

Effects

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