Prerequisites
- Magosi, the Waterveil on the battlefield
- Nesting Grounds on the battlefield
- Karn's Bastion on the battlefield
- Magosi has at least one eon counter on it
each turn available
Steps
- Activate Karn's Bastion's last ability by paying
and tapping it, putting an eon counter on Magosi - Activate Nesting Grounds's last ability by paying
and tapping it, moving an eon counter from Magosi to Nesting Grounds - Activate Magosi's last ability by tapping it, removing an eon counter from it, and returning it to your hand, taking an extra turn after this one
- Play Magosi from your hand
- Move to your next turn
- Activate Karn's Bastion's last ability by paying and tapping it, putting an eon counter on Nesting Grounds
- Activate Nesting Grounds's last ability by paying and tapping it, moving an eon counter from Nesting Grounds to Magosi
- Repeat from step 3
