The gods have powers of their own. As evidenced in the many hymns epics and poems.
Transformation or shape shifting
The ability and powers to move from one place to another in an instant
Powers to manipulate animals to obey their commands
Powers to manipulate the weather
Powers to become invisible
Powers to create fantastic beings with supernatural powers
Their blood was a bright unearthly fluid called Ichor that had the power of producing new life
This is without their weapons .
So if you take away their weapons, they still have a lot of powers left.
Zeus • Facts and Information on Greek God of the Sky Zeus". Greek Gods & Goddesses.