Scute Mob + Bioshift + Sage of Hours + Isochron Scepter

Prerequisites

• You control at least five lands.
• At least four +1/+1 counters on Scute Mob.

Steps

1. 1Activate Isochron Scepter by tapping it and paying , casting a copy of Bioshift without paying its mana cost, targeting Scute Mob and Sage of Hours.
2. 2Sage of Hours triggers, putting a +1/+1 counter on itself.
3. 3Resolve the Bioshift copy, moving four +1/+1 counters from Scute Mob onto Sage of Hours.
4. 4Activate Sage of Hours by removing all +1/+1 counters from it, generating an extra turn after this one.
5. 5At the beginning of your extra turn's upkeep, Scute Mob triggers, putting four +1/+1 counters on itself.
6. 6Repeat.

Effects

• Infinite turns
• Lock