Ty considered things for a moment.
"I wish that everyone in the world would find themselves unable to resist any commands or suggestions I give." That seemed like it would be useful.
"I wish that I could not be harmed in any way by anybody, either through accident or someone's action. I wish I couldn't suffer or die from old age." There, now he wouldn't have to worry about getting injured.
What else did Ty need to take care of?
Oh, yeah. "I wish that I would never lose this power!"
Now, on to the revenge!
"Hey, Dustin! Get your butt in here!" Ty hollered. Dustin walked into Ty's room, shirt and underwear on, but no pants, and only one sock. Dustin looked a bit confused.
"What the hell do you want, jerk?" asked Dustin.
"Oh, I've been thinking about that for awhile now," replied Ty, grinning in anticipation.