Osgir, the Reconstructor + Ugin's Nexus + Pull from Eternity + Isochron Scepter

Prerequisites

• Osgir does not have summoning sickness.

Steps

1. 1Activate Osgir by tapping it, paying , and exiling Ugin's Nexus from your graveyard, creating two token copies of Ugin's Nexus.
2. 2Put one of them into your graveyard due to the legend rule.
3. 3The token copy of Ugin's Nexus that was just put into your graveyard triggers, causing you to take an extra turn after this one.
4. 4Activate Osgir by paying and sacrificing a token copy of Ugin's Nexus.
5. 5The sacrificed token copy of Ugin's Nexus triggers, causing you to take an extra turn after this one.
6. 6Osgir's ability resolves, giving target creature you control +2/+0 until end of turn.
7. 7Move to your next extra turn.
8. 8Activate Isochron Scepter by tapping it and paying , copying Pull from Eternity.
9. 9Cast Pull from Eternity, returning Ugin's Nexus to your graveyard.
10. 10Move to your next extra turn.
11. 11Repeat.

Effects

• Infinite turns
• Lock