Ulamog's Dreadsire + Thornbite Staff + Phyrexian Altar

Ulamog's Dreadsire

Thornbite Staff

Phyrexian Altar

How it works

1. Activate Ulamog's Dreadsire by tapping it, creating a 10/10 Eldrazi creature tokens.
2. Activate Phyrexian Altar by sacrificing the Eldrazi token, adding one mana of any color.
3. When the Eldrazi token dies, Ulamog's Dreadsire triggers, untapping Ulamog's Dreadsire.
4. Repeat.

This clever loop turns Ulamog's Dreadsire into a one-card token factory by leveraging Thornbite Staff's triggered ability to untap the equipped creature whenever anything dies. By sacrificing the newly created 10/10 Eldrazi token to Phyrexian Altar, you generate a mana of any color while immediately triggering the Staff to untap Ulamog's Dreadsire. Because the Staff's untap trigger fires off the token's death, you can repeat this tap-and-sacrifice cycle endlessly to yield an infinite supply of colored mana alongside boundless entry, death, and sacrifice triggers.