Just summon 1 Lemon Magician Girl to stall until last turn (never pass your turn without cards in your hand) and summon Quintet Magician with 5 different spellcaster monsters to destroy all cards on Shark's field. Safe and fast deck, usually wins in 10 or less turns.
This Yubel? Doing every step it says? Cause it's better to use the spell "Exile Of The Wicked" to destroy your Terror Incarcate to summon The Ultimate Nightmare after using 3 to summon Montage Dragon & using it to attack your Montage Dragon is better.