Level 8 gets a reshuffle, a draw and a power up!
RD/KP10-JP056 ヤマタノツルギ Yamata no Tsurugi
Normal Spell Card
[REQUIREMENT] You can activate this by shuffling 1 Level 8 monster from your GY back into the Deck.
[EFFECT] Draw 1 card. Then, you can choose 1 face-up Level 8 monster you control, it gains 800 ATK until the end of the turn.
Note: This would be like The Sword of Yamata, but since it’s referencing Yamata no Orochi, I think leaving it in Japanese is right? Anyways, the Yamata no Orochi is a legendary 8 headed serpent in Japanese myth that was slain by the warrior kami Susanoo managing to get all eight of his heads drunk at once with LOTS and LOTS of sake.