Golbez, Crystal Collector + Repository Skaab + Time Stretch

Golbez, Crystal Collector

Repository Skaab

Time Stretch

How it works

1. Cast Time Stretch by paying 8, causing you to take two extra turns after this one.
2. During your first extra turn, cast Repository Skaab by paying 3.
3. When Repository Skaab enters the battlefield, its first ability triggers, causing it to exploit itself. Its second ability then triggers, returning Time Stretch from your graveyard to your hand.
4. At the beginning of your end step, Golbez's second ability triggers, returning Repository Skaab from your graveyard to your hand.
5. Repeat during your second extra turn.

By leveraging Golbez, Crystal Collector alongside Repository Skaab, you can create a recursive engine that continuously loops Time Stretch for infinite extra turns. As Repository Skaab enters the battlefield, its exploit ability sacrifices itself, which immediately triggers its second ability to pull Time Stretch right back to your hand. Meanwhile, Golbez, Crystal Collector keeps your artifact count managed while its end-step trigger rescues Repository Skaab from the graveyard, setting you up to recast the whole sequence during your next extra turn.