The last time I saw the orb discussed the opinion that the Orb saving throw bonus was too powerful, espeically in combination with spells like Sleep.
This was because you can apply the mage'Wizards WIS bonus as a penalty to a spell saving throw.
The interpretation has been that this penalty applies every round, until the creature succeeds (or dies).
I think this interpretation is wrong. I think the penalty applies for one single saving throw: it applies for one round, and then it's done.
If you look at the other implements, Wand and Stave, their primary benefit is to give a bonus to one single roll. The Wand gives +2 to one attack, the Staff gives a CON bonus to AC. (It also gives a permanent +1 AC, but this is because it uses up two hands.)
So I think the Orb is also meant to apply to one single roll.
This was because you can apply the mage'Wizards WIS bonus as a penalty to a spell saving throw.
The interpretation has been that this penalty applies every round, until the creature succeeds (or dies).
I think this interpretation is wrong. I think the penalty applies for one single saving throw: it applies for one round, and then it's done.
If you look at the other implements, Wand and Stave, their primary benefit is to give a bonus to one single roll. The Wand gives +2 to one attack, the Staff gives a CON bonus to AC. (It also gives a permanent +1 AC, but this is because it uses up two hands.)
So I think the Orb is also meant to apply to one single roll.