This combo generates infinite:
- Damage
- Cast triggers
Other variations replace Lightning Bolt with Shock (or any instant-speed burn spell with CMC 2 or less).
Note: This combo requires one or more nonland permanent(s) that taps for 2+ mana.
Steps:
- Play Isochron Scepter and exile Lightning Bolt.
- Pay 2 mana to tap Isochron Scepter and cast the copy of Lightning Bolt.
- When Lightning Bolt is cast, deal 3 damage to target creature or opponent and untap Isochron Scepter and the nonland mana source with Paradox Engine.
- Repeat steps 2 and 4, dealing 3 damage infinitely.