2 Level 4 Fiends = 6 Materials Zeus
How does it work?
It's basically Zoodiac, except you have to summon 2 monsters instead; and instead of using a 1500 damage direct attack, you will use a 4000 ATK beatstick
2 Level 4 D/D monsters can overlay into
D/D/D Wave King Caesar. This is much easier to achieve now that we have the new Lvl 4 D/D monster:
D/D Gryphon, being the Bora of this Deck. The new Xyz,
D/D/D Deviser King Deus Machinex can overlay on top of
ANY D/D/D monster.
Number 84: Pain Gainer can overlay on top of a Rank 8-10 DARK Xyz. Guess what's a Rank 10 DARK Xyz? Exactly,
Machinex is.
Number 77: The Seven Sins can overlay on top of
Pain Gainer. And lastly, attack with your 4k beatstick into
AA-Zeus in M2.
tl;dr, 2 Lvl 4 Fiends -> D/D/D Wave King Caesar -> D/D/D Deviser King Deus Machinex -> Number 84: Pain Gainer -> Number 77: The Seven Sins -> Divine Arsenal AA-Zeus - Sky Thunder
What Do The D/D Monsters Actually Do?
Note that most of them are used
SPECIFICALLY because they're Level 4. Pendulum Summon is an option. You can also Summon
AA-Zeus with
Genghis (-2 Materials). And Special Summoning
D/D Orthros actually locks you into Fiend