Infernoble Igknight

Igknights provide extremely consistent access to the starters and boss monsters Infernoble Knights need, as well as aiding with swarming. They also enable you the search off of Isolde, since she doesn't negate the pendulum effect of the monster searched. Isolde's summon from deck is a pretty brutal choke point, but I think this is probably the best version of Infernoble Knights.

The goal of this deck is to draw at least 2 Igknights to search Sublimation Knight, which equips Squeaknight from deck to make Isolde. Isolde searches another Igknight, which can use its pendulum effect to search IPG later. Use Isolde to summon Ogier from deck, who dumps Turpin to grave. If possible, use Durendal to acquire Ignis Phoenix, scale up and pendulum summon as many monsters as possible. From there it's up to you.

Depending on your hand, you can use Turpin to help you make Angelica, searching Horn of Olifant, or go into Ignister Prominence, or straight into Baronne or Charles. From there, you can use any monster + Isolde to make Spright Sprind, which dumps Ringowurm from deck. Ringowurm banishes itself to summon a token, allowing you to make any of your synchros, depending on what's still on board. If you have Charles, you can add Divine Sword Phoenix Blade back to hand and equip it to Charles. This lets you activate Turpin's other effect, summoning himself from grave. Overlay him and any level 4 for the Battlin' Boxer Xyz, which searches the Counter Trap and turns Spright Sprind online. Link off the Charles for Charlemagne, giving you a S/T negate. If you have both the Battlin' Boxer counter trap, use his effect to destroy the equipped Charles (unless you control the field spell and can summon Charles out). You need the zones. Use Ogier's effect to equip him from grave.

At any point in this combo, you can use a second wave of Igknights to search IPG. If you managed to get Ignis Phoenix, this summons an additional tuner from deck (of any level, since it can be any Igknight) and extends your combo dramatically. Summon IPG by banishing anything. Set Horn of Olifant and the Battlin' Boxer Counter Trap, then during End Phase equip anything from grave and Oliver from deck. This gives you a Charlemagne that's untargetable and indestructible (at 3.8k if you equip Phoenix Blade from grave and don't have the field spell) and ends you on a S/T negate in Charlemange, a monster negate in IPG, a monster negate in the counter trap, a pop in Horn of Olifant, a bounce in Spright Sprind, and anything else you managed to get from your synchros (could be Baronne, could be Muddy Mudragon into Mirrorjade, could be Omega). If you happened to draw Morgan that's an extra omni right there too.

Morgan is to try and provide some protection for Isolde because that's a pretty bad choke point, but if you don't draw the equip to facilitate that, it's still pretty good later because Charlemagne will equip a Noble Arms from grave, turning her online.

The side deck is full of other options I was considering. The Mikanko cards make a pretty good engine with Renaud, allowing you to cut down on the number of equip spells you're running, since you can send just Water Arabesque to summon him. He adds back Water Arabesque, which you equip to summon Ha Re from deck. Search Fire Dance. Summon Renaud back from hand, synchro for Cupid Pitch. Cupid Pitch become level 5, use Fire Dance to summon back Ha Re, synchro for Scarlight and search Performapal Handstandcoon because why not. Pend summon your previously destroyed Igknights, use one + Isolde to dump Ringowurm, Ringowurm banish to summon a token. Token + Scarlight for Dis Pater. Dis Pater summon back Ringowurm. Ringo + Igknight for whatever synchro is applicable (Muddy Mudragon is probably the best in this case. Since you don't have Turpin in grave, you only have access to the Xyz if you were lucky, so Spright Sprind isn't online, meaning you can use Muddy Mudragon + Sprind for Mirrorjade and lose nothing).

Additional Ringowurms in the main deck probably wouldn't be bad because it's a free tuner SS, but I don't think I can justify it because it's pretty important to open 2 Igknights with this strategy.

It's too bad the Battlin' Boxer counter trap doesn't negate S/T, so it doesn't protect you from Dark Ruler, but having 2 disruptions + a boss monster that's untargetable & indestructable through Dark Ruler is still pretty good.