Naru Meha, Master Wizard | Breaking // Entering | Phyrexian Altar

Cards

Phyrexian Altar on the battlefield.
Naru Meha and
Breaking // Entering in hand.
There is at least one creature card in a graveyard.
({6} magic symbol) ({U} magic symbol) ({U} magic symbol) ({B} magic symbol) ({R} magic symbol) available.

Cast
Entering by paying ({4} magic symbol) ({B} magic symbol) ({R} magic symbol) , targeting any creature card in a graveyard.
Holding priority, cast
Naru Meha by paying ({2} magic symbol) ({U} magic symbol) ({U} magic symbol) .
When
Naru Meha enters the battlefield, it triggers, targeting
Entering.
Holding priority, activate
Phyrexian Altar by sacrificing
Naru Meha, adding one mana of any color.
Resolve the
Naru Meha ability, creating a copy of
Entering, targeting
Naru Meha.
Resolve the copy of
Entering, returning
Naru Meha from your graveyard to the battlefield.
Repeat from step 3.
Optionally, you may cast both
Breaking and
Entering if you have an additional ({U} magic symbol) ({B} magic symbol) available to infinitely mill any number of players.