Vorel of the Hull Clade, Intruder Alarm, and Thallid Devourer

Prerequisites

• Vorel of the Hull Clade on the battlefield
• Intruder Alarm on the battlefield
• Thallid Devourer on the battlefield
• Thallid Devourer 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

Steps

1. Activate all mana-producing creatures you control by tapping them, adding at least
2. Activate Vorel of the Hull Clade by paying and tapping it, doubling the number of counters on Thallid Devourer
3. Activate Thallid Devourer'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 , 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 Devourer if it has four or more spore counters to start the combo, and you may also optionally sacrifice the Saproling tokens to Thallid Devourer's ability

Results

• Infinite creature tokens
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinitely large Thallid Devourer until end of turn
• Infinite mana creatures you control can produce
• Infinite proliferate for artifacts, creatures, and lands
• Infinite sacrifice triggers
• Infinite spore counters on Thallid Devourer
• Infinite untap of all creatures