Edison format ruling
Cloudian - Poison Cloud
Card effect (current official text)When this card is destroyed by battle and sent to the Graveyard, if it was face-up at the start of the Damage Step: Destroy the monster that destroyed it, and if you do, inflict 800 damage to your opponent.
Rulings
- "Cloudian – Poison Cloud’s" effect will only inflict 800 damage if its effect successfully destroys the monster that destroyed it in battle. For example, "Vennominaga, the Deity of Poisonous Snakes" is unaffected by other Monster Effects and thus could not be destroyed, so "Cloudian – Poison Cloud" would not inflict damage in this case.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Edison forum — sourced change requests get reviewed.