Bartolomé del Presidio + Haunted One + Intruder Alarm + Xavier Sal, Infested Captain

GWUB identity

Commander legal

The 4 combo pieces

What must be in place

There is at least one counter on a permanent you control except Xavier Sal.
Xavier Sal does not have summoning sickness.
You control at least one additional nontoken Human, Fungus and/or Pirate that has no more than one +1/+1 counter on it.

How to execute it

  1. Activate Xavier Sal's first ability by tapping it and removing a +1/+1 counter from the additional nontoken Human, Fungus and/or Pirate if it has one, or any counter from another permanent you control otherwise.
  2. Xavier Sal triggers, causing it and all other creatures you control that share a creature type with it to get +2/+0 and gain undying until end of turn.
  3. Resolve the Xavier Sal ability, causing you to populate.
  4. Activate Bartolomé del Presidio by sacrificing the additional Human, Fungus and/or Pirate.
  5. When the creature dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  6. When the creature enters the battlefield, Intruder Alarm triggers, untapping all creatures.
  7. Resolve the Bartolomé del Presidio ability, putting a +1/+1 counter on it.
  8. Repeat.

What the combo produces