Requires

Melira, the Living Cure must be on the battlefield. The Peregrine Dynamo must be on the battlefield. Phyrexian Altar must be on the battlefield. Melira is not your commander. Mana needed:

Steps

1. Activate Melira by exiling it.
2. Holding priority, activate The Peregrine Dynamo by paying and tapping it, copying Melira's ability.
3. Resolve the copy of Melira's ability, choosing The Peregrine Dynamo.
4. Activate Phyrexian Altar by sacrificing The Peregrine Dynamo, adding one mana of any color.
5. Melira triggers, returning The Peregrine Dynamo from your graveyard to the battlefield.
6. Repeat from step 2.

Results