Sidisi, Regent of the Mire + Bladewing the Risen + Thornbite Staff + Grimgrin, Corpse-Born

Sidisi, Regent of the Mire

Bladewing the Risen

Thornbite Staff

Grimgrin, Corpse-Born

How it works

1. Activate Sidisi by tapping it and sacrificing a nontoken Dragon with mana value 6.
2. When the creature dies, Sidisi triggers, untapping Sidisi.
3. Resolve the Sidisi ability, returning Bladewing from your graveyard to the battlefield.
4. When Bladewing enters the battlefield, it triggers, returning the Dragon with mana value 6 from your graveyard to the battlefield.
5. Activate Grimgrin by sacrificing Bladewing.
6. When Bladewing dies, Sidisi triggers, untapping Sidisi.
7. Resolve the Grimgrin ability.
8. Repeat.