Item Spells

[Mysterio]

Couple questions for the experts:

1. For items that contain a spell, such as Numbness on an Ice Pebble Staff, does the commander equipped with this item accrue fatigue when Numbness is cast via the item? In other words, would a mage that's already capable of casting Numbness benefit from such an item?

2. When a commander dies of old age, what happens to his equipped items?

Thanks!