Cloudstone Curio + Kobolds of Kher Keep + Crimson Kobolds

단계

1. Cast Kobolds of Kher Keep by paying {0}.
2. When Kobolds of Kher Keep enters. Cloudstone Curio triggers, returning Crimson Kobolds from the battlefield to your hand.
3. Cast Crimson Kobolds by paying {0}.
4. When Crimson Kobolds enters, Cloudstone Curio triggers, returning Kobolds of Kher Keep from the battlefield to your hand.
5. Repeat.