Koll, the Forgemaster + Demonmail Hauberk + Rograkh, Son of Rohgahh + Phyrexian Walker

Koll, the Forgemaster

Demonmail Hauberk

Rograkh, Son of Rohgahh

Phyrexian Walker

How it works

1. Activate Demonmail Hauberk's equip ability by sacrificing Rograkh, targeting Phyrexian Walker.
2. Rograkh dies, triggering Koll, returning Rograkh from your graveyard to your hand.
3. Resolve the Demonmail Hauberk ability, attaching it to Phyrexian Walker.
4. Cast Rograkh by paying 0.
5. Activate Demonmail Hauberk's equip ability by sacrificing Phyrexian Walker, targeting Rograkh.
6. Phyrexian Walker dies, triggering Koll, returning Phyrexian Walker from your graveyard to your hand.
7. Resolve the Demonmail Hauberk ability, attaching it to Rograkh.
8. Cast Phyrexian Walker by paying 0.
9. Repeat.