I like it. But what about stuff that increases health, allows one to breath underwater, or multiple weapon enchantments?
I could probably think of a few things. What about an effect that spreads to the visible hand. For example, when a sword actively restores your health, as in when you take damage and it begins to go up, the hilt of the sword has a small "pulse" of lines of light, whatever color you want depending on the effect. For the sake of restore health, let's say it's red. These red likes course rapidly down the blade, and then to your hand. Your hand gains that small pulse, where the lines of light trace down your veins, then fade. Change color, or even shape for magicka and fatigue. Maybe magicka is shaped runic, and traces along strange canols in your hand that are rigid and angular. Maybe fatigue can highlight muscle ridges.
Maybe Turn Undead can act in proximity to undead enemies. When near an undead enemy, your blade can gain a holy aura not dissimilar to Oblivion's default enchantment aura. When you strike an undead enemy, it can pulse. When a sword is enchanted with a constant effect of Light, the blade itself will glow with a light and act as a torch. Over extended use, the light will slowly dim until it goes dark.
There are a variety of ways you can implement these things, you just need to be creative