Flying
Indestructible (Damage and effects that say "destroy" don't destroy this creature.)
The ultimate treasure is one that guards itself.
Illustrated by Ron Spencer · Darksteel · #111
There are no rulings for Darksteel Gargoyle.
Flash (You may cast this spell any time you could cast an instant.)
Vigilance
Indestructible (Damage and effects that say "destroy" don't destroy this creature. If its toughness is 0 or less, it's still put into its owner's graveyard.)
Defender
Other permanents you control have indestructible.