You can only use the 1st and 2nd effects of this card’s name once per turn, each.
(1) If a monster you control is destroyed by battle or an opponent’s card effect while this card is in your hand or already in your GY: You can activate this effect; Special Summon this card, but banish it when it leaves the field.
(2) If this card is Special Summoned: You can target 1 face-up monster on the field; discard 1 card, and if you do, add 1 monster with the same Type and Attribute but a different name of the targeted monster from your Deck to your hand.
Atom 1.0
