How can you create a combo with Malcolm, Keen-Eyed Navigator, Lightning-Rig Crew, Crab Umbra?
user
[START OF COMBO]This combo can be formed with Malcolm, Keen-Eyed Navigator, Lightning-Rig Crew, Crab Umbra

Color identity: UR
Mana cost: 
Steps:
  1. Tap Lightning-Rig Crew to deal 1 damage to each opponent, creating 3 treasure tokens from Malcolm's trigger.
  2. Sacrifice 3 treasure token for {2}{U}.
  3. Activate Crab Umbra to untap Lightning-Rig Crew.
  4. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite damage
  - Near-infinite sacrifice triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Crab Umbra attached to Lightning-Rig Crew.
  - Lightning-Rig Crew does not have summoning sickness.
[END OF COMBO PREREQUISITES]
assistant