"As you already know, the current magic holding rings have terrible limitations. They cannot store a spell of a different tier from their own and they cannot be used by anyone who isn't their owner." Balkor said.
"On paper, there's nothing wrong with it, but look at the issue from another perspective. Every mage has something they excel at and something they suck at. For example, I can't match Orion's defense as a Mage Knight just like he can't match the destructive power of my spells.
"If I could charge his rings and him mine, we would cover our respective weaknesses. We would also always have at the ready spells that we are only able to cast slowly and with sub-par effects."
"On top of that, it would allow even a non-mage to use powerful spells." Vastor chimed in. "This research started because Jirni wanted to get rid of Deirus, but after Manohar got ahold of the Spell Hoarding Cube, he saw a fix to all of our problems.