Rain Bozu

Level 7 PS 8 LIGHT/Fairy Pendulum Effect
0 ATK / 0 DEF

[ Pendulum Effect ]
Once per turn: You can target 1 face-up monster you control; it gains ATK equal to the difference between the number of cards in the Extra Decks x 100, until the end of this turn (even if this card leaves the field).

[ Monster Effect ]

Gains ATK during your turn only, and gains DEF during your opponent's turn only, each equal to the difference between the number of cards in the Extra Decks x 200. If this card attacks, it is changed to Defense Position at the end of the Battle Phase. If this card in the Monster Zone is destroyed: You can place this card in your Pendulum Zone.

Rulings – Yugipedia

Printings:

Eternity Code: ETCO-EN093 (Common) - 2020-04-30
2021 Tin of Ancient Battles: MP21-EN090 (Common) - 2021-09-30

Prices:

Cardmarket: 0.03 €
TCGplayer: $ 0.04