ritual yugioh deck Complete Custom for Yu-Gi-Oh! This is of Secret Rare rarity Ratio advice for Ritual monsters/decks.

The two creatures that are put onto the battlefield are put onto the battlefield sequentially

He had some expectations that the Arabian Nights box could go for somewhere in excess of 500

Consequently, Xyz Monsters cannot normally be used as material for a Synchro or Xyz Summon (unless specifically permitted, such as with the Pendulum Effect of "Xiangke Magician", or by monsters that explicitely demand them as their material), and any effects that refer to, or modify, the Level of a monster (such as "Gravity Bind", most Ritual Spell Cards, or "Harmonic Waves") do not affect Xyz Monsters and cannot be applied to them

That should be fine, right

Otherwise, keep to the combo to 3 or more cards and you'll fit into brackets 3 and below

SR Super Rare Forbidden Forbidden Abyss Dweller X WATER Rank 4 [ Sea SerpentXyzEffect ] ATK 1700 DEF 1400 2 Level 4 monsters While this card has a material attached that was originally WATER, all WATER monsters you control gain 500 ATK