How can you create a combo with Vorel of the Hull Clade, Intruder Alarm, Vitaspore Thallid?
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[START OF COMBO]This combo can be formed with Vorel of the Hull Clade, Intruder Alarm, Vitaspore Thallid

Color identity: GU
Mana cost: 
Steps:
  1. Activate all mana-producing creatures you control by tapping them, adding at least {G}{U}.
  2. Activate Vorel of the Hull Clade by paying {G}{U} and tapping it, doubling the number of counters on Vitaspore Thallid.
  3. Activate Vitaspore Thallid by removing three spore counters from it, creating a 1/1 Saproling creature token.
  4. When the Saproling enters the battlefield, Intruder Alarm triggers, untapping all creatures.
  5. Repeat.
  6. If creatures you control can tap to produce at least {1}{G}{U}, this combo nets infinite mana and you may target any creature using Vorel of the Hull Clade.
  7. This combo also nets infinite spore counters on Vitaspore Thallid if it has four or more spore counters to start the combo.[END OF COMBO STEPS]

Result:
  - Infinite creature tokens
  - Infinite death triggers
  - Infinite enters the battlefield
  - Infinite leaves the battlefield
  - Infinite mana creatures you control can produce
  - Infinite proliferate for artifacts, creatures, and lands
  - Infinite sacrifice triggers
  - Infinite spore counters on Vitaspore Thallid
  - Infinite untap of all creatures[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Vitaspore Thallid has at least three spore counters on it.
  - Vorel of the Hull Clade does not have summoning sickness.
  - Creatures you control can tap to produce at least {G}{U}.
[END OF COMBO PREREQUISITES]
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