Dovescape, Displacer Kitten, Phyrexian Altar, and Spellbook Seeker // Careful Study

Prerequisites

• Dovescape on the battlefield
• Displacer Kitten on the battlefield
• Phyrexian Altar on the battlefield
• Spellbook Seeker // Careful Study in hand
• 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 Spellbook Seeker // Careful Study, which enters prepared
5. Activate Phyrexian Altar by sacrificing a Bird token, adding one mana of any color
6. Repeat

Results

• Infinite draw triggers
• Infinite looting
• Infinite self-discard triggers
• Near-infinite creature ETB
• Near-infinite creature LTB
• Near-infinite magecraft triggers
• Near-infinite storm count
• Infinite colored mana
• Infinite creature tokens
• Infinite death triggers
• Infinite creature sacrifice triggers