Yu-Gi-Oh! Nightmare Troubadour: Beginner Puzzle 11
Beginner #11 Blueprint For Revenge
Activate Polymerization and select Gaia the Dragon Champion by discarding Gaia the Fierce Knight and Curse of Dragon and select attack position.
Switch to Battle Phase.
Attack Blue-Eyes White Dragon with Gemini Elf.
Attack Blue-Eyes White Dragon with Gaia the Dragon Champion.
Attack opponent's life points with Gemini Elf.