Blade of the Bloodchief + Pentavus + Phyrexian Altar

Blade of the Bloodchief

Pentavus

Phyrexian Altar

How it works

1. Activate Phyrexian Altar by sacrificing another creature, adding 1.
2. When the creature dies, Blade of the Bloodchief triggers, putting a +1/+1 counter on Pentavus.
3. Activate Pentavus' first ability by paying 1 and removing a +1/+1 counter from it, creating a 1/1 Pentavite artifact creature token.
4. Repeat.

This loop turns Pentavus into a self-sustaining mana and trigger engine by leveraging its ability to continuously spawn tokens at a discount. With Blade of the Bloodchief equipped, every sacrifice feeds right back into the construct to replace the counter used, while Phyrexian Altar provides the mana needed to keep the cycle turning and converts your Pentavites into a limitless stream of deaths and sacrifices.