Possess

From the Super Mario Wiki

Possess is Boo's Skillshot in Mario Strikers Charged. Once fully charged, Boo will possess the ball, turn it invisible, and head straight towards the goal. Once he gets close enough, he shoots the ball out of his body. This move is useless if Boo is too far from the goal, as the Goalie will almost always deflect the ball. If close up (but not too close), Boo will be invisible when he passes the Goalie, so he can pass him, and shoot into the goal. The fact that it is only useful when up-close is very similar to Toad's Fire Meteor. It is likely inspired from the fact that ghosts can possess items or people.

Boo's deke can be used like Toad's: to bypass the goalie by a hair and score, but instead of flipping in mid-air, teleporting just slightly. Thus, especially in online play, this skillshot is sometimes considered obsolete.

Mario Strikers Charged Skillshots
Hammer Bro.	Hammer Throw
Toad	Fire Meteor
Koopa	Shell Smash
Birdo	Extreme Egg
Boo	Possess
Dry Bones	Shocker
Monty Mole	Dirt Drill
Shy Guy	Bullet Bill Blast