Yu-Gi-Oh! GX Duel Academy Puzzle: 042

1. Summon King of the Skull Servants.

2. Activate Dark Factory of Mass Production to get two Skull Servants.

3. Activate Back to Square One, discard one of the Skull Servants and choose a Blue-Eyes White Dragon as the effect victim.

4. Activate Tribute to the Doomed, discard Skull Servant and destroy BEWD.

5. Enter Battle Phase and attack BEWD with the King.

6. Choose to return the King by removing one Skull Servant from play.

7. Attack with the King again.