Marina, Princess of Sunflowers

Level 8 FIRE/Plant Effect
2800 ATK / 1600 DEF

If exactly 1 other Plant-Type monster you control (and no other cards) is destroyed by battle or by card effect and sent to the Graveyard: You can target 1 card your opponent controls; destroy that target. This card must be face-up on the field to activate and to resolve this effect.

Rulings – Yugipedia

Printings:

Shadow Specters: SHSP-EN040 (Super Rare) - 2013-11-08
2014 Mega-Tin Mega Pack: MP14-EN157 (Super Rare) - 2014-08-28
Secret Slayers: SESL-EN053 (Super Rare) - 2020-04-03

Prices:

Cardmarket: 0.06 €
TCGplayer: $ 0.01