MTG >Combos >Myr Retriever +Mirrorworks +Ashnod's Altar +Lotus Petal +

With

Ashnod's Altar

and

Mirrorworks

on the battlefield. 1- Cast

Lotus Petal

, sacrifice it generating a mana of any color. 2- Cast

Myr Retriever

and pay 2 to

mirrorworks

to make a copy of your

Myr Retriever

. 3- Sacrifice the original

Myr Retriever

generating mana, take

Lotus Petal

from your graveyard to your hand. 4- Sacrifice the copy of

Myr Retriever

generating and search for

Myr Retriever

with mana in your mana pool Repeat the loop.