I occasionally play a wizard in LFR games. We were playing a level 3-4 module, and I was level 1.
Second Encounter: I get 2nd in initiative.
It's a reasonably large, square room, with the enemies at the far end. Between the two sides, against the right wall, is a large square trap - get close to it, you get zapped. There's only 3-4 squares of space next to the left wall to move past it. There's one melee enemy against the left wall at the other side of the room, another just a bit behind the trap, but near there. Behind the trap there are 4 minions.
The ranger goes first, twin strike, downs a minion.
Then I'm up.
Encounter Power: Grasping Shadows.
I caught 2 minions in the AoE and killed them (would've been 3 if not for the ranger). The last minion couldn't walk through the trap (he'd probably get killed), and couldn't walk through the zone I'd created (he'd certainly get killed), so he wasted his turn doing nothing.
I also caught the first of the melee guys, and fortunately scored a hit, slowing him.
Then I popped an Action Point and hit the remaining melee guy with Illusory Ambush, giving him -2 to attacks.
The fighter, went for this same enemy, giving him another -2 to attacks against anyone but the fighter.
When the first melee guy's turn came up, he couldn't move far enough to hit anyone, so he moved 2 squares forward and readied to hit anyone who came close (no one did).
The rogue looked at Mr. Marked, realized that if Mr. Marked made an OA, it would be at -4 to attack, and the fighter would then get a free melee basic attack against him. So the rogue walked right past him to flank.
Yes, my dice were rolling well. But as the lowest-level character, using an encounter power and an action point (into an at-will), I managed to:
-Kill 2 minions.
-Keep 1 minion and 1 real enemy out of the fight for the first round.
-Give the remaining enemy -2 to attack rolls.
-Help the rogue set up a flank.
-Deal a little damage to the real enemies.
All without putting myself at any risk. I really like Illusory Ambush, actually, because after I gave that enemy -2 to attack rolls, the fighter marked him, and the warlock ran up with his concealment from Shadow Walk. That puts him at:
-2 to attack vs. the fighter
-6 to attack vs. the warlock
-4 to attack vs. anyone else
I think being a controller works a lot better with smart allies. Hooray teamwork!