Here is my deck suggestion for people who don't have access for labyrinth builder nor dark paladin (like me)
u can use any fusion monster with 2k attack or more, preferably if u have a glossy/prismatic one, and u should try to get ur horus Lv8 out as fast as possible, if u manage to summon it the farm is guaranteed 100% as long as u don't mess up with the final secret pass/union combo, also u can get +8k with this deck
Once u get the horus Lv8 out he will just keep setting cards since he can't activate any spells and he doesn't have any monster with +3k attack, he still only can play his negate attack trap and that's it, but yeah u need to get lucky to get ur horus early otherwise it's quite tricky