Halvar, God of Battle // Sword of the Realms + Deathrender + Puresteel Paladin + Yahenni, Undying Partisan

Halvar, God of Battle // Sword of the Realms

Deathrender

Puresteel Paladin

Yahenni, Undying Partisan

How it works

1. Activate Yahenni by sacrificing the creature with Sword of the Realms and Deathrender attached.
2. When the creature dies, Sword of the Realms and Deathrender trigger.
3. Resolve the Sword of the Realms trigger, returning the creature from your graveyard to your hand.
4. Resolve the Deathrender trigger, putting a creature card from your hand onto the battlefield and attaching Deathrender to it.
5. Resolve the Yahenni ability.
6. Activate Sword of the Realms by paying 0, attaching it to the creature that has Deathrender attached.
7. Repeat.