毒蛇神ヴェノミナーガ
from Yu-Gi-Oh Trading Card Game
Vennominaga is the boss monster of the Venom archetype from the Yu-Gi-Oh Trading Card Game. She has a unique win condition effect, much like Exodia. When she deals damage to an opponent they get a Venom counter, and a player with 3 Venom counters automatically loses the duel regardless of how many Life Points they have. She is summoned in the anime by Thelonious Viper in a three part duel with Jaden Yuki in episodes 117, 118 and 119 of Yu-Gi-Oh GX.

Yu-Gi-Oh Trading Card Game
The Yu-Gi-Oh! Trading Card Game, known as the Yu-Gi-Oh! Official Card Game (遊☆戯☆王オフィシャルカードゲーム Yū-Gi-Ō Ofisharu Kādo Gēmu) in Asia, is a Japanese collectible card game developed and published by Konami. It is based on the fictional game of Duel Monsters created by manga artist Kazuki Takahashi, which is the main plot device during the majority of the manga franchise, Yu-Gi-Oh!, and its various anime adaptations and spinoff series.