Goat format ruling
Mecha-Dog Marron

Card effect (current official text)When this card is destroyed by battle and sent to the Graveyard, inflict 1000 damage to both players. When this card on the field is destroyed and sent to the Graveyard except by battle, inflict 1000 damage to your opponent.
Rulings
- If "Mecha-Dog Marron" is destroyed in the middle of a chain, its effect starts a new chain when the current chain has finished resolving.
- You can use "Barrel Behind the Door" against either effect of "Mecha-Dog Marron".
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Goat forum — sourced change requests get reviewed.