Koa'ki Meiru Drago [RGBT-EN024] Ultimate Rare Synchro/Tuner Monster you can even find:

you can even find:

and Effect Monster effects cannot be activated

This card's ATK and DEF become equal to the ATK and DEF of the monster equipped to this card

You can only use the effect of "Mermail Abysslinde" once per turn

Koa'ki Meiru Drago [RGBT-EN024] Ultimate Rare Synchro/Tuner Monster you can even find:Set: Raging Battle Card type: Effect Monster Rarity: Ultimate Rare Attack: 1900 Defense: 1600 During each of your End Phases, destroy this card unless you send 1 "Iron Core of Koa'ki Meiru" from your hand to the Graveyard or reveal 1 Dragon Type monster in your hand. LIGHT and DARK monsters cannot be Special Summoned.