How can you create a combo with Vorel of the Hull Clade, Intruder Alarm, Psychotrope Thallid?
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[START OF COMBO]This combo can be formed with Vorel of the Hull Clade, Intruder Alarm, Psychotrope 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 Psychotrope Thallid.
  3. Activate Psychotrope Thallid's first ability 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 Psychotrope Thallid if it has four or more spore counters to start the combo, and you may also optionally sacrifice the Saproling tokens to Psychotrope Thallid's ability if mana permits.[END OF COMBO STEPS]

Result:
  - Infinite card draw
  - Infinite creature tokens
  - Infinite death triggers
  - Infinite draw 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 Psychotrope Thallid
  - Infinite untap of all creatures[END OF COMBO RESULT][END OF COMBO]

Other prerequisites:
  - All permanants must be on the battlefield
  - Psychotrope 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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