Edison format ruling
Hyper Psychic Blaster

Card text as printed in this era1 Tuner + 1 or more non-Tuner Psychics
① Inflicts Piercing Damage.
② At the end of the Damage Step, if this card attacked a monster with DEF lower than this card's ATK:
Gain LP equal to the difference.
Rulings
- If the opponent's monster is no longer on the field (if it was destroyed by battle, or if it was a token), use its original DEF.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Edison forum — sourced change requests get reviewed.