Here is a Odd-eyes ritual monster and spell

Odd-eyes Reversal Dragon
Attribute: light
Type: Dragon/Ritual/Pendulum/Effect
Level: 7
Pendulum scale: 9
Attack:3000
Defence:2500
Monster effect: This card can be ritual summoned with any ritual spell that has "Odd-eyes" in its name or list "Odd-eyes" in its card text. Must be either ritual or pendulum summoned. If this card is ritual summoned, you can target 1 card on the field, return it to the hand or deck. If a card(s) on the field was destroyed by battle or card effects; you can target 1 of those destroyed cards, add it to your hand. Once per turn:If a card or effect is activated while this card is on the field; you can negate that effect and if you do, destroy this card and/or a card on your side of the field. If this card in the monster zone is destroyed by battle or card effects, then you can place this card in your pendulum zone.
Pendulum effect:Your opponent can't target pendulum monsters use control with card effects. If a card(s) you control are destroyed by battle or card effects, then you can either add 1 pendulum monster from your deck to your hand or special summon 1 "Odd-eyes" monster from your deck or GY, ignoring its summoning conditions. You can only activate this effect once per turn. During the end phase, if this card is in the pendulum zone, then you can return this card to your hand and if you do, add 1 ritual spell or a card that lists the word "ritual" in its card text to your hand.

This is used to ritual summon any "Odd-eyes", "Performapal", "Magician" or "Supreme King" ritual monster. If you control no monsters while your opponent controls at least 2 monsters: You can use monsters from your deck and/or pendulum monsters that are face-up in the extra deck as well as monsters from your hand and/or field as materials for a ritual summon of a ritual monster. If this card is used to ritual summon "Odd-eyes Reversal Dragon": you can destroy 1 card on the field. If this card is used to ritual summon "Odd-eyes pendulumgraph dragon": add 1 "Odd-eyes" monster from your deck to your hand. If this card is used to ritual summon a non "Odd-eyes" ritual monster: add this card from the GY to your hand and add a "Odd-eyes" ritual from your deck or GY to your hand.

Hope this is a good ritual monster and bye