Infinite Reticence

When Angor planned to make a composite-effect space storage, he read through the entire Enchantment Cyclopaedia: For Starters and didn't find any rune he wanted. The passive effects granted by these basic runes all looked too simple. He simply gave up and moved on to the magic arrays described in Enchantment Cyclopaedia: Advanced.

He had to choose which enchantment effect to give his space storage.

Attack abilities? No. He might as well make another weapon for that purpose.

Defensive effect? He thought about it and denied his idea. Anyone who managed to break his defense could damage his space storage too, which would do something bad to the stored items. For defense, his best choice was to make something else.

The magic arrays were either too difficult to draw or unsuitable to his situation.

Until he was attracted by something called "Infinite Reticence".