Naru Meha, Master Wizard | Extract from Darkness | Ashnod's Altar

Cards

Ashnod's Altar on the battlefield.
Naru Meha and
Extract from Darkness in hand.
({5} magic symbol) ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) ({B} magic symbol) available.

Cast
Extract from Darkness by paying ({3} magic symbol) ({U} magic symbol) ({B} magic symbol) .
Holding priority, cast
Naru Meha by paying ({2} magic symbol) ({U} magic symbol) ({U} magic symbol) .
When
Naru Meha enters the battlefield, it triggers, copying
Extract from Darkness.
Activate
Ashnod's Altar by sacrificing
Naru Meha, adding ({C} magic symbol) ({C} magic symbol) .
Resolve the copy of
Extract from Darkness, causing each player to mill two cards, and you to return
Naru Meha from your graveyard to the battlefield.
Repeat from step 3.

Infinite colorless mana.
Infinite death triggers.
Infinite ETB.
Infinite LTB.
Infinite magecraft triggers.
Infinite mill.
Infinite sacrifice triggers.
Infinite self-mill.
Put all creature and planeswalker cards from each opponent's library and graveyard onto the battlefield under your control.