Must be either Fusion Summoned, or Special Summoned by Tributing 1 Level 10 Aqua monster with 0 ATK (in which case you do not use “Polymerization”).
(1) This card can be treated as 3 Tributes for a Tribute Summon.
(2) Cannot be destroyed by battle. Your opponent cannot target monsters you control for attacks or with card effects, except “Egyptian God Slime”.
Atom 1.0
