Cast Vishgraz either from your hand or from the command zone by paying 2 plus commander tax, if applicable.
When Vishgraz enters the battlefield, it triggers, creating three 1/1 Phyrexian Mite artifact creature tokens.
Activate Phyrexian Altar by sacrificing Vishgraz, adding .
When Vishgraz dies, Pitiless Plunderer and Enduring Renewal trigger.
Resolve the Pitiless Plunderer trigger, creating a Treasure token.
Resolve the Enduring Renewal trigger, returning Vishgraz from your graveyard to your hand.
Activate Phyrexian Altar four times by sacrificing two Phyrexian Mites, adding 2.
When the Phyrexian Mites die, Pitiless Plunderer triggers twice, creating two Treasure tokens.
Activate two Treasures by tapping and sacrificing them, adding .
Repeat.
This elegant loop turns your commander into an infinite engine by leveraging a clever recycling trick. When you cast Vishgraz, the Doomhive, its entry triggers the creation of three Phyrexian Mite tokens, which provide the initial fodder alongside the commander itself. By sacrificing Vishgraz to Phyrexian Altar, Enduring Renewal swoops in to bounce it straight back to your hand while Pitiless Plunderer spawns a Treasure token to help fund the re-casting. Meanwhile, sacrificing the Mites to the Altar and tapping the resulting Treasures generates all the colored mana you need to continuously replay Vishgraz, fueling an endless cascade of artifacts, tokens, sacrifices, and deaths.