This is a funny Deck. It's based on Battleguard King and Swamp/Lava Battleguard. It's focused on Summon lvl 5 monsters by discrad them and revive or Special Summon. Chaos-End Master is an important piece for this deck, with this card you can easily summon Lava Battleguard, also you can use Foolish Burial and Dust Knight to send Swamp Battleguard to your GY and return to the field with Feast of The Wild or Valkirian Kight and Tenma. Obviously, Monster Reborn and Call of The Haunted do the same. For emergency you can also use Soul Charge.
All of the Synchro are lvl 7 or 8 monsters that you can Summon using Chaos-End Master and the Xyz monsters are lvl 5 and 4. With this deck you can Summon monster easily, so you can ignore Battleguard King and use the Extra Deck monsters. In this situation Collosal Fighter becomes the star of this deck (your GY always have a lot of Warrior-type monsters).