Bloom Diva the Melodious Choir

Level 6 LIGHT/Fairy Fusion Effect
1000 ATK / 2000 DEF

1 "Melodious Maestra" monster + 1 "Melodious" monster
Cannot be destroyed by battle or card effects, also you take no battle damage from attacks involving this card. If this card battles a Special Summoned monster, after damage calculation: You can inflict damage to your opponent equal to the difference between the original ATK of that opponent's monster and this card, and if you do, destroy that opponent's monster.

Rulings – Yugipedia

Printings:

Crossed Souls: CROS-EN040 (Ultra Rare) - 2015-05-14
2016 Mega-Tin Mega Pack: MP16-EN020 (Ultra Rare) - 2016-09-01
Star Pack Battle Royal: SP17-EN036 (Common) - 2017-03-09
Star Pack Battle Royal: SP17-EN036 (Starfoil Rare) - 2017-03-09

Prices:

Cardmarket: 1.16 €
TCGplayer: $ 1.03