Vhal, Candlekeep Researcher, Scuttling Sliver, and Mirror Entity

Prerequisites

• Vhal, Candlekeep Researcher on the battlefield
• Scuttling Sliver on the battlefield
• Mirror Entity on the battlefield
• Vhal does not have summoning sickness
• available

Steps

1. Activate Vhal by tapping it, adding at least that cannot be spent to cast spells from your hand
2. Activate Mirror Entity by paying , causing all creatures you control to have base power and toughness 3/3 and gain all creature types until end of turn
3. Activate Vhal by paying , untapping it
4. Activate Vhal by tapping it, adding at least that cannot be spent to cast spells from your hand
5. Repeat from step 3

Results

• Infinite colorless mana that cannot be spent to cast spells from your hand
• Infinitely large creatures until end of turn
• Infinite mana creatures you control can produce
• Infinite untap of creatures you control