I've got a second-level Staff of Defense Eladrin Wizard with Thunderwave and Cloud of Daggers as his at-wills. (Shoving someone through the Cloud with Thunderwave is indeed as fun as it sounds.) His first level feat was Leather Armor Proficiency, so he's currently got an AC of 18 (which can be boosted to 24 with the staff + Shield spell once per encounter). Level 2 feat is Raging Storm, which cemented his concept as a weather mage.
Had a great deal of fun when he got himself into trouble by sneaking around at night, Fey Stepping through keyholes. At one point, there were a couple guards shooting at me from a trapdoor in the ceiling. I Mage Handed the trapdoor closed, and then one of them found out the hard way what happens when you get pushed two squares upward. (hint: you get smacked with the trapdoor that got blasted off its hinges, bounce off the ceiling, fall, take 1d10 falling damage, fail your edge-save and fall through the trapdoor taking another 1d10, and then the ladder falls over on you. Good times.)
He's really going to hit his stride at Paragon tier as a Spellstorm Mage (which keys several path abilities off of Wisdom), with the Resounding Thunder and Solid Sound feats, some Gauntlets of the Ram and a Thunderwave Staff, and the Thunderlance spell. Using a Staff of the War Mage and Resounding Thunder to turn Storm Cage into a Burst 4 also sounds delicious. And then shoving people through the lightning wall with Thunderlance, of course...
Had a great deal of fun when he got himself into trouble by sneaking around at night, Fey Stepping through keyholes. At one point, there were a couple guards shooting at me from a trapdoor in the ceiling. I Mage Handed the trapdoor closed, and then one of them found out the hard way what happens when you get pushed two squares upward. (hint: you get smacked with the trapdoor that got blasted off its hinges, bounce off the ceiling, fall, take 1d10 falling damage, fail your edge-save and fall through the trapdoor taking another 1d10, and then the ladder falls over on you. Good times.)
He's really going to hit his stride at Paragon tier as a Spellstorm Mage (which keys several path abilities off of Wisdom), with the Resounding Thunder and Solid Sound feats, some Gauntlets of the Ram and a Thunderwave Staff, and the Thunderlance spell. Using a Staff of the War Mage and Resounding Thunder to turn Storm Cage into a Burst 4 also sounds delicious. And then shoving people through the lightning wall with Thunderlance, of course...