How can you create a combo with Feast of Sanity, Skirge Familiar, Veinwitch Coven?
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[START OF COMBO]This combo can be formed with Feast of Sanity, Skirge Familiar, Veinwitch Coven

Color identity: B
Mana cost: 
Steps:
  1. Activate Skirge Familiar by discarding a creature card, adding {B}.
  2. Feast of Sanity triggers, dealing 1 damage to any target and causing you to gain 1 life.
  3. Veinwitch Coven triggers, causing you to pay {B} to return any creature card from your graveyard to your hand.
  4. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite damage
  - Infinite lifegain
  - Infinite lifegain triggers
  - Infinite self-discard triggers[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - You have at least one creature card in hand.
[END OF COMBO PREREQUISITES]
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