Arcane Bombardment + Inspiring Refrain + Jhoira's Timebug + Temporal Manipulation + Walk the Aeons

Arcane Bombardment

Inspiring Refrain

Jhoira's Timebug

Temporal Manipulation

Walk the Aeons

How it works

1. Cast Inspiring Refrain by paying 4.
2. Arcane Bombardment triggers, exiling a random instant or sorcery from your graveyard, and then casting a copy of Temporal Manipulation and Walk the Aeons without paying their mana costs.
3. Resolve the Temporal Manipulation and Walk the Aeons 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.

This ingenious chain begins by casting Inspinspiring Refrain to trigger Arcane Bombardment, which floods your battlefield with free copies of Temporal Manipulation and Walk the Aeons to secure an endless sequence of extra turns. Because Inspinspiring Refrain exiles itself with time counters after resolving, Jhoira's Timebug can repeatedly tap to shave those counters off ahead of schedule. As you transition through your bonus turns, your normal upkeep triggers effortlessly remove the final counter to recast Inspinspiring Refrain for free, instantly looping the entire process back into Arcane Bombardment.