Lindbloom

Level 4 EARTH/Wyrm Effect
0 ATK / 1800 DEF

If a monster you control battles an opponent's monster, during damage calculation: The ATK of each monster in that battle becomes equal to their current DEF, until the end of the Damage Step.

Rulings – Yugipedia

Printings:

The New Challengers: NECH-EN033 (Common) - 2014-11-06
2015 Mega-Tin Mega Pack: MP15-EN152 (Common) - 2015-09-17

Prices:

Cardmarket: 0.03 €
TCGplayer: $ 0.09