Yu-Gi-Oh! Legacy of the Duelist

In my opinion the "best" way to do this, is to play with the premade Fusion Structure Deck. Then simply get out Blaze Fenix, the Blazing Bombardment Bird asap and set as many cards on the board as you can. Do not attack with this card just simply use the cards effect wich is "deal 300 (effect) damage x each card on the field. If lucky the game will be over in 3-4 turns.

Quick boosting method with a friend. Found this ALOT easier but that's just personal preference.

Just use the fusion structure deck. Get your Blaze Fenix (Fusion Monster) out as soon as possible. This cards effect does 300 dmg for each card on the field faced down or up doesnt matter. Can easily boost this in social matches with a friend. Just select match instead of single and make the LP 16000. Both players put down cards but DO NOT attack just use the effect of Blaze Fenix.