Ioreth of the Healing House + North Pole Patrol + Card with "The Ring tempts you"

Prerequisites

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

Steps

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