Cannot be Normal Summoned/Set. Must first be Special Summoned (from your Deck) by Tributing "Zoa" equipped with "Metalmorph".
Rulings
Netrep Q&As
Q: Can you attack with a "Zoa" equipped with "Metalmorph" and then offer it to Special Summon "Metalzoa" during the Battle Phase to attack with the newly summoned monster? A: You can only perform that Special Summon during Main Phase 1 or 2 of your turn only. Curtis Schultz, 01/05/2004
DARK|
Level 8|[ Machine / Effect ]
ATK 3000|
DEF 2300