Intruder Alarm + Thallid Shell-Dweller + Vorel of the Hull Clade

GU identity

Commander legal

The 3 combo pieces

What must be in place

Thallid Shell-Dweller 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}.

How to execute it

  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 Thallid Shell-Dweller.
  3. Activate Thallid Shell-Dweller 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 Thallid Shell-Dweller if it has four or more spore counters to start the combo.

What the combo produces