How can you create a combo with Grimgrin, Corpse-Born, Gravecrawler, Paradise Mantle, Thornbite Staff?
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[START OF COMBO]This combo can be formed with Grimgrin, Corpse-Born, Gravecrawler, Paradise Mantle, Thornbite Staff

Color identity: UB
Mana cost: 
Steps:
  1. Activate Grimgrin by tapping it to add a mana of any color.
  2. Activate Grimgrin, sacrificing Gravecrawler to put a +1/+1 counter on and untap Grimgrin.
  3. Thornbite Staff triggers.
  4. Holding priority, Activate Grimgrin to add {B}.
  5. Resolve the Thornbite Staff trigger, untapping Grimgrin.
  6. Pay {B} to cast Gravecrawler from your graveyard.
  7. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite colored mana
  - Infinite damage
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite sacrifice triggers
  - Infinite storm count[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Paradise Mantle and Thornbite Staff attached to Grimgrin.
  - Grimgrin does not have summoning sickness.
[END OF COMBO PREREQUISITES]
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