Monster Should be Summoned

Duel Puzzle Information
To Summon a high level Monster you must Tribute Monsters. For Level 5 and 6, one Tribute. For level 7 and above, two Monsters must be Tributed. You cannot Tribute Monsters from your Hand so don't make any mistakes.

Duel States
Your Life Points:- 1000

Your Opponent's Life Points:- 1000

Your Cards
Hand:-

Blue-Eyes White Dragon

Curse of Dragon

Toad Master

Petit Moth

Shadow Specter

Shadow Specter

Field:-

Armored Starfish (Attack Position)

Doron (Attack Position)

Your Opponent's Cards
Field:-

Harpie Lady Sisters (Attack Position)

Steps
1) Summon Blue-Eyes White Dragon by Tributing Armored Starfish and Doron on your side of The Field.

2) Enter the Battle Phase

3) Attack the Harpie Lady Sisters for the game.