Winds of Velious is our DoT / Snare. Unless it changed at some point, the first version is available at L55. Used in conjunction with Summon Servant, you can generally kill mobs much faster with this spell and your Mage pet than you can having your Fighter pet straight up tank them. Obviously, a little more risk involved.
The only person who knows if shared stats had any benefit to lower level Conjurors is a lower level Conjuror, of which you'll find few on the forums.