Black-Winged Assault Dragon

Level 10 DARK/Dragon Synchro Monster
3200 ATK / 2800 DEF

1 Tuner Synchro Monster + 1+ non-Tuner monsters
Must be either Synchro Summoned, or Special Summoned from your Extra Deck by banishing 1 Tuner Synchro Monster and 1 "Black-Winged Dragon" from your face-up field and/or GY. Each time your opponent activates a monster effect, place 1 Black Feather Counter on this card when that effect resolves, and if you do, inflict 700 damage to your opponent. During your opponent's turn (Quick Effect): You can Tribute this card with 4 or more Black Feather Counters on it; destroy all cards on the field.

Rulings – Yugipedia

Printings:

Darkwing Blast: DABL-EN042 (Ultra Rare) - 2022-10-20
25th Anniversary Tin: Dueling Heroes Mega Pack: MP23-EN187 (Prismatic Secret Rare) - 2023-09-07

Prices:

Cardmarket: 1.48 €
TCGplayer: $ 0.84