Council of Reeds + Kairi, the Swirling Sky + Phyrexian Altar + and 2 others

UBR identity

Commander legal

The 5 combo pieces

What must be in place

You have attacked this turn.

How to execute it

  1. Activate Phyrexian Altar by sacrificing Protean Raider, adding {B}.
  2. When Protean Raider dies, it triggers, causing you to mill six cards and return Unearth and up to one other instant or sorcery card from your graveyard to your hand.
  3. Cast Unearth by paying {B}, returning Protean Raider from your graveyard to the battlefield as a copy of Kairi.
  4. Repeat.

What the combo produces