Intruder Alarm, Fungal Bloom, Sporoloth Ancient, and Song of Freyalise

Prerequisites

• Intruder Alarm on the battlefield
• Fungal Bloom on the battlefield
• Sporoloth Ancient on the battlefield
• Song of Freyalise in hand or on the battlefield
• If Song of Freyalise is on the battlefield, it has exactly one lore counter on it
• You control at least four creatures that do not have summoning sickness

Steps

1. Activate four creatures by tapping them, adding
2. Activate Fungal Bloom by paying , putting two spore counters on a Fungus you control
3. Activate a Fungus by removing two 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

Results

• Infinite ETB
• Infinite creature tokens
• Infinite green mana
• Infinite untap of all creatures
• Infinite mana creatures you control can produce
• Infinite spore counters on Fungi you control