Kamen Rider Recor idea

Recor (Pronounced like Wrecker, based on record, like a historical record) his final attacks are called History Big Bangs.
Forms (accessed by combining 2 Riderpedias, one Left and one Right)

History Master: Zio + Decade (Base form). Its History Big Bang is Attack Time, a rider kick joined by spectres of Zio and Decade.

Crimson Dragon: Wizard + Ryuki (Fire and Dragon form)

Scarlet Speeder: Kabuto + Drive (Speed form). Its History Big Bang is Clock Throttle, where Recor slashes many times with the Buster SX Axe mode and then shoots them to oblivion, all at the speed of sound.

Navy Swordsman: Blade + Gaim (Sword Form with water (or rather juice) and lightning powers)

Time-Space Traveler: Deno + Fourze (Form with rocket propulsion for space travel and the ability to travel through time). Its History Big Bang is Ore Limit. Recor is launched into the air with his enemy through the power of his rockets and spins vertically like a buzzsaw to rip them in half.

2 + 2: W + Build (Martial Arts form with mastery of kicks and jumps. Also has access to wind powers and can split in half). Its History Big Bang is Vortex Extreme, where Recor is split in half as he does a screw kick.

Wack a Drum: Ex-Aid + Hibiki  (Melee Form with a double-sided hammer (which can split) and creates vibrations)

Gold Horns: Agito + Kuuga (Martial Arts form with mastery of punches and can harness spirit energy) Its History Big Bang is unnamed, and is a brutal beatdown which ends with the victim exploding.

Glow in the Dark: Ghost + Faiz (Form with the ability to turn intangible and uses photons to cut  and blast foes). Its History Big Bang is Exceed Drive, where Ghost’s symbol is launched from the belt to paralyze the foe, as the Buster XS Sword mode glows with photon particles and is used to cut them in half.

Legacy King: Kiva + OOOs (most powerful of the 10 normal forms, with peak physical strength, jumping ability, senses & durability, which are all enhanced by demon energy. Has access to 2 unique weapons)
Belt name: Recordriver The Belt
Weapons
Buster XS: A weapon with 3 modes, Buster, Axe, and Sword. It starts in Buster Mode, and pulling the back lever makes it transform into the 2 other modes. Its final attack is History Big Blast.
	Axe Mode: Pulling the lever once causes the back left side of the gun to flip out and turns it into an axe weapon. This weapon’s uneven weight distribution makes it hard to hold and wield, but it makes more forceful cuts because of it. Scarlet Speeder’s speed powers can use this form of the weapon with no issues. Its final attack is History Big Bash
	Sword Mode: Pulling the lever a second time turns the axe blades around to make it a sword. Thanks to even weight distribution, the weapon is easier to carry and hold but makes less forceful cuts. Good for blocking attacks. Its final attack is History Big Blade

Orange Rouzer. A combination of the Daidai Maru and Blade Rouzer. Used in conjunction with Buster XS’s Sword mode for dual-wielding. Used by Nazy Swordsman. Its final attack is Thunder Sparking. It can also do the less powerful Thunder Squash and Thunder Au Lait attacks.

Ongekibo Breakers: A pair of hammers that are the weapons of Wack a Drum, they can be combined into a double-sided hammer. Its finisher is Ongeki Da Finish.

Double Drag Booster: A fire launching gauntlet with 2 barrels, 1 resembling Wizardragon, and the other resembling Dragredder. Used with Buster SX’s Buster Mode, or can be combined into Double Drag Buster, which launches high-temperature flames. Its Final attack in Double Drag Buster Mode is Final Flame Strike.

OOO Bow: A bow that shoots 3 types of shots, the air seeking Taka Shots, the ground searing Tora Shots and the bouncing Batta Shots.
Kivarrow: An arrow that doubles as a sword by itself. It can do 4 slash attacks: the energy draining Kivat Bite, the tearing Garuru Slash, the piercing Bassha Spiral, and the shocking Dogga Smash.
When the two are combined Wake Up Charge, they perform its most powerful attack, King Break, which shoots a powerful energy bat that turns its victim into glass that then breaks into coins.

Kamen Rider Watch (based on watching, AKA viewing and watches)
Watcher Book: The Riderpedia that makes him transform. All of Watch’s Riderpedias are Left, but they open up fully, unlike Recor’s. He uses the belt called Watcher Wikibelt
Equipment

Sinone Watch: The watch on Watch’s left that has the 9 secondary riders from Heisei Phase 1 (G3, Knight, Kaixa, Chalice (cause he has a bow), Ibuki, Gatack, Zeronos, Ixa, Diend). When set to 1 rider and the button is pushed, the arm becomes the rider’s left arm and grants Watch that rider’s weapon, an arm can provide multiple weapons, if that rider had multiple weapons.

Dextwo Watch: The watch on Watch’s right that has the first 9 secondary riders from Heisei Phase 2 (which excludes Geiz). Does the same thing as Sinisone Watch but for the right arm.