The best combos of this deck only require 2 cards to pull off. Considering you would most likely get a combo piece in your starting hand, with the search power of Destiny Draw and Doomdog Octhros, you will almost always have a big monster on your field by your third turn.
Using Destiny Draw you can search out any card in place of your normal draw everytime your life points are decreased by 2000.
Summon Invader of Darkness to lock your opponent from using any quick-play spells, which would be devastating since many meta decks heavily rely on quick-play spells for protection and support. This would also decrease your LP by 2000, allowing you to use Destiny Draw again next turn.
Summon Fenghuang to use as backrow removal. Destroy your opponent's set spell/trap cards, or force him to activate them early. And since Fenghuang returns to your hand every end phase, you can keep using him to destroy your opponent's backrow.
You will be losing a lot of LP while using this deck. Adding heal cards would be an excellent choice, giving you the opportunity to use Mausoleum of the Emperor and Destiny Draw multiple times.
Use Supremacy Berry when your LP is lower than your opponent to heal yourself by 2000 LP.
Take damage from your opponent's monster while you control no monsters on the field to activate The Golden Apples. This would heal you equal to the amount of damage you took and special summon a token with attack and defense points equal to that amount. Switch toggle to On so that you can activate multiple The Golden Apples from receiving one attack.
Aegis of Gaia increases your LP by 3000 but also damages you 3000 LP when it leaves the field. Be careful when using this card against a deck with heavy backrow removal.
Summoning Lava Golem to your opponent's side of the field is a great way to remove their monsters from the field, because it is almost impossible to stop. You can then use Owner's Seal to take Lava Golem and use it to attack your opponent. Though you will be taking 1000 damage each of your standby phases, this can still be used to your advantage as it will help you use Destiny Draw.