How can you create a combo with Mikaeus, the Unhallowed, Pith Driller, Grinding Station?
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[START OF COMBO]This combo can be formed with Mikaeus, the Unhallowed, Pith Driller, Grinding Station

Color identity: B
Mana cost: 
Steps:
  1. Activate Grinding Station by tapping it and sacrifiicing Pith Driller.
  2. When Pith Driller dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
  3. When Pith Driller enters the battlefield, it and Grinding Station trigger.
  4. Resolve the Pith Driller trigger, putting a -1/-1 counter on it.
  5. Resolve the Grinding Station trigger, untapping it.
  6. Resolve the Grinding Station ability from step 1, causing target player to mill three cards.
  7. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite leaves the battlefield
  - Infinite enters the battlefield
  - Infinite sacrifice triggers
  - Infinite death triggers
  - Infinite mill
  - Infinite self-mill[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Pith Driller does not have a +1/+1 counter on it.
[END OF COMBO PREREQUISITES]
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