Edison format ruling
Vennominaga the Deity of Poisonous Snakes

Card effect (current official text)Cannot be Normal Summoned or Set. Must first be Special Summoned with "Rise of the Snake Deity" and cannot be Special Summoned by other ways except by its own effect. This card gains 500 ATK for each Reptile-Type monster in your Graveyard. This card cannot be targeted by, and is unaffected by, Spell/Trap effects and other Effect Monsters' effects. When this card is destroyed by battle and sent to the Graveyard: You can banish 1 other Reptile-Type monster from your Graveyard; Special Summon this card. When this card inflicts Battle Damage to your opponent: Place 1 Hyper-Venom Counter on it. When 3 Hyper-Venom Counters are on this card, you win the Duel.
Rulings
- Removing from play 1 Reptile-Type monster in your GY to Special Summon this card is a cost.
- This card’s effect to place 1 Hyper-Venom Counter on itself starts a chain when it inflicts Battle Damage to your opponent.
- When 3 Hyper-Venom Counters are placed on this card, its controller wins the Duel as part of the resolution of the effect.
- This card is not affected by the effects of any other Monsters, Spells or Traps, even effects that do not target.
- If Skill Drain is already active on the field when Vennominaga is Special Summoned, the effect of Vennominaga is negated.
- This card can be Tributed normally for a Tribute Summon, or for the cost of another card. It cannot be Tributed as part of the resolution of a card's effect, like Ectoplasmer.
- You can Tribute your opponent's Vennominaga to Summon Lava Golem.
- If this card is destroyed by battle with Dark Ruler Ha Des, Dark Ruler Ha Des' effect negates this card's effect in the GY, and it cannot be Special Summoned.
- Please note the spelling of this card’s name. It is not a "Venom" monster.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Edison forum — sourced change requests get reviewed.