Activate Lotus Petal by sacrificing it, adding one mana of any color.
Activate Arcbound Reclaimer by removing a +1/+1 counter from it, putting Lotus Petal from your graveyard onto the top of your library.
Activate Oracle's Vault's second ability by tapping it, exiling Lotus Petal from the top of your library with the ability to play it until end of turn without playing its mana cost.
Cast Lotus Petal from exile without paying its mana cost.
Rocco's second ability triggers, putting a +1/+1 counter on Arcbound Reclaimer and creating a Food token.
Activate Clock of Omens by tapping the Food and Lotus Petal, untapping Oracle's Vault.
Repeat.

Infinite artifact ETB

Infinite creature LTB

Infinite creature ETB

Infinite colored mana

Infinite creature sacrifice triggers

Infinite death triggers

Infinite storm count

Infinite tapped Food tokens

Rocco, Street Chef

Oracle's Vault

Arcbound Reclaimer

Clock of Omens

Lotus Petal

Activate Rith's Attendant by paying {1} and sacrificing it, adding {R}{G}{W}.
Activate Arcbound Reclaimer by removing a +1/+1 counter from it, putting Rith's Attendant from your graveyard onto the top of your library.
Activate Oracle's Vault's second ability by tapping it, exiling Rith's Attendant from the top of your library with the ability to play it until end of turn without playing its mana cost.
Cast Rith's Attendant from exile without paying its mana cost.
Rocco's second ability triggers, putting a +1/+1 counter on Arcbound Reclaimer and creating a Food token.
Activate Clock of Omens by tapping the Food and Rith's Attendant, untapping Oracle's Vault.
Repeat.

Infinite red mana

Infinite green mana

Infinite white mana

Rith's Attendant

Combos with "Oracle's Vault"