Ness
Sonic: Who's this kid?
Tails: That's Ness, Sonic.
Sonic: Got any info on him?
Tails: Well when he was-
Knuckles: NO! NO EARTHBOUND/MOTHER 2 SPOILERS!
Tails: But...
Knuckles: NO! THE STORY IS TOO GOOD TO BE SPOILED!
Sonic: Ok...got any fighting tips?
Tails: Ness uses psychic abilities called PSI.
Sonic: Is he magic?
Knuckles: NO TELLING!
Tails: Sorry, Sonic. Not much I can say any more.
Sonic: Well, wish me luck!