Sidedecking Exodia

3 Rescue Rabbit
3 Tour Guide From the Underworld
3 Sorcerer of the Doomed
3 The Illusory Gentleman
2 Emissary of the Afterlife
1 Sangan
1 Exodia the Forbidden One
1 Left Leg of the Forbidden One
1 Left Arm of the Forbidden One
1 Right Leg of the Forbidden One
1 Right Arm of the Forbidden One

3 One Day of Peace

3 White Elephant's Gift
2 Wonder Wand
2 Upstart Goblin
2 Creeping Darkness
1 Pot of Duality
1 Allure of Darkness
1 Monster Reborn
1 Heavy Storm

2 Call Of The Haunted
2 Limit Reverse

3 Lavalval Chain
3 Daigusto Emeral
3 Steelswarm Roach
3 Number 39: Utopia
1 Number C39: Utopia Ray
1 Wind-Up Zenmaines
1 Leviair the Sea Dragon

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First off, these are what we're going to take off

- All 5 parts of The Forbidden One

- 2 Emissary of the Afterlife

- 3 One Day of Peace

From now on, let's focus on what we're good at. I already take out 10 cards, so it would be hard to side out any further cards. So, let's build on from what we have and build a synergy from that. Rabbit into Lavalval Chain is the main play, so we need to capitalise on that. Since I also have Creeping Darkness there (with no target post-siding), if I'm not going to take it out, I need to make sure it has another target.

Our focus is now on Lavalval Chain. Since it is easy to dump stuffs into Grave, we are going to use grave-based engine. There are two main choice here : Zombie or Plant. I am leaning with Zombie since it has more Special Summon , which is important as I need to save my Normal Summon for Rabbits and Guides.

+ 1 Zombie Master

+ 3 Goblin Zombie

+ 1 Plaguespreader Zombie

So, we're on 18 monsters slots now - let's add some more. We are playing with only 4 traps and I don't think it is necessary to include more traps. With all the hand advantage going, 2 Trags and Gorz would be my defense. These, on top of 2 Maxx "C" should be enough as a protective measure against most Tier 2 deck. We are not going to compete with those gay Tier 1 deck in the first place so why bother . On top of that, I think Lavalval Chain need more target, so a copy of Glow-Up Bulb would serve me good and allow for synchro option alongside Plague.

With all the massive revival in the deck, a Zombie Normal Monster is needed, not only as a target for Rabbit but also makes White Gift less of a dead card. So, I decided to cut out a piece of Normals each for 2 Master Kyonshee

3 WEG and 2 Wand in a Zombie deck seems out of place BUT it works consistently enough for the template Exodia build that I think it would do well here. The key here is, Rescue Rabbit also count as a target. Furthermore, Emeral, TGUs etc. helps a lot in bringing those draw power alive.

Finally, we need to change out the Extras of course.

So, here's the full final list,

3 Goblin Zombie

3 Rescue Rabbit
3 Tour Guide From the Underworld
2 Sorcerer of the Doomed
2 The Illusory Gentleman

2 Master Kyonshee

2 Maxx 'C"

2 Tragoedia

1 Mezuki

1 Plaguespreader Zombie

1 Zombie Master

1 Glow-Up Bulb

1 Gorz the Emissary of Darkness

3 White Elephant's Gift
2 Wonder Wand
1 Upstart Goblin
1 Pot of Duality
1 Allure of Darkness
1 Monster Reborn
1 Heavy Storm

2 Call Of The Haunted
2 Limit Reverse

2 Lavalval Chain
1 Daigusto Emeral
1 Steelswarm Roach
1 Number 39: Utopia
1 Wind-Up Zenmaines
1 Leviair the Sea Dragon

1 Ally of Justice Catastor

1 Black Rose Dragon

1 Brionac, Dragon of the Ice Barrier

1 Orient Dragon

1 Revived King Ha Des

1 Scrap Dragon

1 Stardust Dragon

1 Trishula, Dragon of the Ice Barrier