Dovescape, Displacer Kitten, Phyrexian Altar, and Emeritus of Truce // Swords to Plowshares

Prerequisites

• Dovescape on the battlefield
• Displacer Kitten on the battlefield
• Phyrexian Altar on the battlefield
• Emeritus of Truce // Swords to Plowshares on the battlefield
• available

Steps

1. Cast a copy of the prepared spell by paying its mana cost
2. When you cast that spell, Displacer Kitten and Dovescape trigger
3. Resolve the Dovescape trigger, countering the prepared spell and creating a number of 1/1 flying Bird creature tokens equal to its mana value
4. Resolve the Displacer Kitten trigger, blinking Emeritus of Truce
5. When Emeritus of Truce enters, it triggers, causing a player to create a 1/1 flying Inkling token and becoming prepared
6. Activate Phyrexian Altar by sacrificing a Bird token, adding one mana of any color
7. Repeat step 5 until you have enough mana to cast the prepared spell
8. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite colored mana
• Infinite creature tokens
• Infinite death triggers
• Infinite magecraft triggers
• Infinite sacrifice triggers
• Infinite storm count