Panoptic Mirror + Dramatic Reversal + Strionic Resonator

Panoptic Mirror

Dramatic Reversal

Strionic Resonator

How it works

1. At the beginning of your upkeep, Panoptic Mirror triggers.
2. Holding priority, activate any number of nonland permanents you control by tapping them, adding at least 2.
3. Activate Strionic Resonator by paying 2 and tapping it, copying Panoptic Mirror's trigger.
4. Resolve the copy of Panoptic Mirror's trigger, casting a copy of Dramatic Reversal without paying its mana cost.
5. Resolve the copy of Dramatic Reversal, untapping all nonland permanents you xontrol.
6. Repeat from step 2.