Activate Helm of Kaldra by paying {1}, creating a legendary 4/4 Kaldra token and attaching Helm of Kaldra, Shield of Kaldra, and Sword of Kaldra to it.
Activate Ashnod's Altar by sacrificing Kaldra, adding {C}{C}.
Repeat.

Infinite colorless mana

Infinite death triggers

Infinite ETB

Infinite LTB

Infinite sacrifice triggers

Helm of Kaldra

Sword of Kaldra

Shield of Kaldra

Ashnod's Altar

Activate Helm of Kaldra by paying {1}, creating a legendary 4/4 Kaldra token and attaching Helm of Kaldra, Shield of Kaldra, and Sword of Kaldra to it.
Activate Phyrexian Altar by sacrificing Kaldra, adding {1}.
Repeat.

Phyrexian Altar

Combos with "Helm of Kaldra"