[Written] ITT: 5 minute attempt to make a Я with any sort of correct flavor

[Blake]

Koa'ki Meiru Maximus Я
WIND
Level 10
Dragon/Effect
Cannot be Normal Summoned or set. Must first be Special Summoned from your hand by banishing 1 "Core of Koa'ki Meiru" from your graveyard and 1 "Koa'ki Meiru" monster you control, except "Koa'ki Meiru Maximus Я". If you have a banished "Koa'ki Meiru Maximus", this card gains 500 ATK and DEF. Once per turn: You can change all monsters you control to face-down defense position, except this card; destroy and banish a number of cards your opponent controls equal to the number of "Koa'ki Meiru" monsters flipped face-down by this effect. Monsters cannot attack monsters flipped face-down by the effect of "Koa'ki Meiru Maximus Я", but can attack directly if all monsters their opponent controls are face-down Defense Position. Their battle positions cannot be changed until the end of your turn, and you cannot Summon monsters for the rest of the turn after you activate the effect of "Koa'ki Meiru Maximus Я".
3000/2500

[Toffee.]

Your missing 'card' after the Koa'ki Core bit of text.

Small detail, but still...