© Can't be Normal Summoned/Set.
© Must first be Special Summoned (from your hand) by targeting 1 "Gradius" you control.
① This card's ATK/DEF always become equal to that target's.
② If that target leaves the field, destroy this card.
● As long as this card was initially Special Summoned by its own procedure (and the summon wasn't negated),
you can Summon it from the GY with card effects.