Goat format ruling
Black Pendant

Card effect (current official text)The equipped monster gains 500 ATK. When this card is sent from the field to the Graveyard: Inflict 500 damage to your opponent.
Rulings
- If this card is destroyed while face-down, it still does damage to your opponent.
- If this card’s activation is negated, such as with Magic Jammer or Riryoku Field it does not do damage to your opponent.
- Black Pendant activates in the GY, so if it is destroyed when Imperial Order is on the field, it still does damage to your opponent.
- You can chain to the activation of the effect of Black Pendant when it is sent to the GY.
- Q: Does "Black Pendant" have to be equipped in order for its effect (when sent from the field to the GY) to be used? A: "Black Pendant's" effect is based on being sent to the GY from the field, not being equipped to a monster.
- Q: If I attack with a monster, can my opponent activate "Black Pendant" and equip it to one of their monsters? A: No. Black Pendant cannot be used in the Battle Phase.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Goat forum — sourced change requests get reviewed.