You can only use the 1st and 2nd effect of this card’s name each once per turn.
(1) If a monster(s) with 2500 original ATK and/or DEF is Normal or Special Summoned to your field: You can Special Summon this card from your hand in Defense Position.
(2) If this card is Special Summoned: You can target 1 “Dark Magician” or “Blue-Eyes White Dragon” you control; it gains 2500 ATK/DEF, until the end of this turn.