Inferno

Edison Card Text
This card can only be Special Summoned by removing 1 FIRE monster in your Graveyard from play. When this card destroys an opponent's monster and sends it to the Graveyard as a result of battle, inflict 1500 points of damage to your opponent's Life Points.
Invasion of Chaos • 2007-06-25
No targeting
Damage Step • Substep 7
Banlist • Unlimited
Rulings
edisonformat.net
●When Inferno battles with another monster with equal ATK, Inferno's effect is not activated because it must destroy the other monster and send it to the GY, and at that time, Inferno is no longer on the field to activate its effect.
●If Inferno attacks a face-down Cyber Jar, Inferno is destroyed by the effect of Cyber Jar and Inferno's effect is not activated.
edisonformat.com
When "Inferno" battles with another monster with equal ATK, "Inferno"'s effect is not activated because it must destroy the other monster "and send it to the Graveyard", and at that time, Inferno is no longer on the field to activate its effect.
If "Inferno" attacks a face-down "Cyber Jar", "Inferno" is destroyed by the effect of "Cyber Jar" and "Inferno"'s effect is not activated.