Intruder Alarm + Kroxa, Titan of Death's Hunger + Mortuary + Selvala, Heart of the Wilds

Mana needed: {B}{R}{G}

UBRG identity

Commander legal

The 4 combo pieces

What must be in place

There is not a creature on the battlefield with power 6 or greater.
Selvala does not have summoning sickness.

How to execute it

  1. Cast Kroxa by paying {B}{R}.
  2. When Kroxa enters the battlefield, it triggers twice, as well as Intruder Alarm and Selvala.
  3. Resolve the Intruder Alarm trigger, untapping all creatures.
  4. Activate Selvala by paying {G} and tapping it, adding {3}{B}{R}{G}.
  5. Resolve the first Kroxa trigger, causing you to sacrifce it.
  6. When Kroxa dies, Mortuary triggers, putting Kroxa on top of your library from your graveyard.
  7. Resolve the second Kroxa trigger, causing each opponent to discard a card and then lose three life if they didn't discard a nonland card.
  8. Resolve the Selvala trigger from step 2, causing you to draw Kroxa from your library.
  9. Repeat.

What the combo produces