Ashaya, Soul of the Wild + Stone-Seeder Hierophant + Skyshroud Ranger + Boros Garrison

Ashaya, Soul of the Wild

Stone-Seeder Hierophant

Skyshroud Ranger

Boros Garrison

How it works

1. Activate Skyshroud Ranger by tapping it, putting Boros Garrison from your hand onto the battlefield.
2. When Boros Garrison enters, it and Stone-Seeder Hierophant trigger.
3. Resolve the Boros Garrison trigger, returning it from the battlefield to your hand.
4. Resolve the Stone-Seeder Hierophant trigger, untapping it.
5. Activate Stone-Seeder Hierophant by tapping it, untapping Skyshroud Ranger as it is a land due to Ashaya.
6. Repeat.