How can you create a combo with Unstoppable Slasher, Hex Parasite, Ashnod's Altar, Trostani, Selesnya's Voice?
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[START OF COMBO]This combo can be formed with Unstoppable Slasher, Hex Parasite, Ashnod's Altar, Trostani, Selesnya's Voice

Color identity: WBG
Mana cost: 
Steps:
  1. Activate Ashnod's Altar by sacrificing Unstoppable Slasher, adding {C}{C}.
  2. When Unstoppable Slasher dies, its second ability triggers, returning itself from your graveyard to the battlefield with two stun counters on it.
  3. When Unstoppable Slasher enters the battlefield, Trostani triggers, causing you to gain life equal to Unstoppable Slasher's toughness.
  4. Activate Hex Parasite by paying {2} and 2 life, removing both stun counters from Unstoppable Slasher and giving Hex Parasite +2/+0 until end of turn.
  5. Repeat.[END OF COMBO STEPS]

Result:
  - Infinite leaves the battlefield
  - Infinite enters the battlefield
  - Infinite sacrifice triggers
  - Infinite death triggers
  - Infinite lifegain triggers
  - Infinite lifegain
  - Infinitely powerful Hex Parasite until end of turn[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Unstoppable Slasher does not have a counter on it.
[END OF COMBO PREREQUISITES]
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