Goat format ruling
Vampire Lord

Card effect (current official text)If this card inflicts battle damage to your opponent: Declare 1 type of card (Monster, Spell, or Trap); your opponent sends 1 card of that type from their Deck to the GY. Once per turn, during your next Standby Phase after this card in your possession was destroyed and sent to your GY by an opponent's card effect: Special Summon this card from the GY.
Rulings
- Your Vampire Lord will only be Special Summoned by his own effect when destroyed and sent to the GY by a card effect that your opponent controls, not by your own card effects or as a result of battle.
- If you Summon Vampire Lord and he is destroyed by your opponent's Horn of Heaven or Solemn Judgment, Vampire Lord will be Special Summoned in your next SP.
- When Vampire Lord is destroyed (by a card effect such as Chain Destruction) while in your hand, in your Deck, or on the field, he will be Special Summoned in your next SP. If Vampire Lord is discarded from your hand it will NOT be Special Summoned.
- When Vampire Lord is Tributed (including by your opponent with Soul Exchange), or when he is sent to the GY, he will not be Special Summoned by his own effect because he was not destroyed.
- If Vampire Lord is supposed to be Special Summoned, but your SP is skipped with Solomon's Lawbook or Gamble, Vampire Lord won't be Special Summoned, not even on the following SP.
- (Search for Vampire Lord 2 to continue reading)
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Goat forum — sourced change requests get reviewed.