Arcane Bombardment, Inspiring Refrain, Jhoira's Timebug, Temporal Manipulation, and Time Walk

Prerequisites

• Arcane Bombardment on the battlefield
• Inspiring Refrain in hand
• Jhoira's Timebug in hand or on the battlefield
• Temporal Manipulation in exile
• Time Walk in exile
• You have not cast an instant or sorcery spell this turn
• Temporal Manipulation and Time Walk exiled by Arcane Bombardment
• available

Steps

1. Cast Inspiring Refrain by paying
2. Arcane Bombardment triggers, exiling a random instant or sorcery from your graveyard, and then casting a copy of Temporal Manipulation and Time Walk without paying their mana costs
3. Resolve the Temporal Manipulation and Time Walk copies, causing you to take two extra turns after this one
4. Resolve Inspiring Refrain, causing you to draw two cards and exile Inspiring Refrain with three time counters on it
5. Activate Jhoira's Timebug by tapping it, removing a time counter from Inspiring Refrain
6. Move to your first extra turn, removing a time counter from Inspiring Refrain during your upkeep
7. Move to your second extra turn, removing a time counter from Inspiring Refrain during your upkeep
8. Inspiring Refrain triggers, causing you to cast it from exile without paying its mana cost
9. Repeat from step 2

Results

• Infinite turns