Advanced format ruling
Cobra Jar
Card effect (current official text)FLIP: Special Summon 1 "Poisonous Snake Token" (Reptile-Type/EARTH/3 Stars/ATK 1200/DEF 1200). When the "Poisonous Snake Token" is destroyed as a result of battle, inflict 500 points of damage to your opponent's Life Points.
Current rulings for this card are maintained by Konami.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Advanced forum — sourced change requests get reviewed.