This combo generates infinite:
- Cast triggers
- Taps and untaps.
Note: This combo requires one or more nonland permanent(s) that taps for 3+ mana to generate infinite mana.
Steps:
- Play Isochron Scepter and exile Dramatic Reversal.
- Tap any nonland mana source(s) to produce 2 or more mana.
- Pay 2 of that mana to tap Isochron Scepter and cast the copy of Dramatic Reversal.
- When Dramatic Reversal is cast, untap Isochron Scepter and your nonland mana sources.
- Repeat steps 2 to 4.