Isochron Scepter + Officious Interrogation + Time Sieve

Isochron Scepter

Officious Interrogation

Time Sieve

How it works

1. Activate Isochron Scepter by paying 2 and tapping it, casting a copy of Officious Interrogation without paying its mana cost.
2. Resolve the copy of Officious Interrogation, creating at least five Clue artifact tokens.
3. Activate Time Sieve by tapping it and sacrificing five Clues, causing you to take an extra turn after this one.
4. Repeat each turn.