You can only use this card name’s (1) effect once per turn.
(1) You can reveal 1 Spellcaster monster in your hand that has 1850 ATK and a name different from the face-up monsters you control; immediately after this effect resolves, Normal Summon/Set that monster.
(2) Each turn, the first time you would take battle or effect damage while you control a Spellcaster monster with 1850 original ATK, you do not.
Atom 1.0
