Everton's capture of Barcelona winger Gerard Deulofeu provides the side with a genuine match-winner, according to captain Phil Jagielka.
The 21-year-old became manager Roberto Martinez's second signing of the summer on Thursday after completing a £4.2million move.
He had an impressive spell the season before last on loan at Goodison Park and his relationship with Martinez was one of the reasons he chose to return, and Jagielka hopes his year on loan at Sevilla will have made an even bigger difference.
"He's always going to be a menace and create things, and I'm sure that's why the manager has brought him in," the England defender told evertontv.
"It's a big thing with Gerard. As far as winning matches - getting those goals, getting those crosses in, beating people, winning free-kicks and things like that - he's something special.
"We've not had an up-close view of him over these past 12 months but it will be interesting to see how he's added to that and matured into his position, and it will be exciting for the fans to come and watch him.
"He did really well for us in his spell on loan and looked like he was going to kick on and get a chance at Barcelona.
"Obviously that didn't really happen but he's a fantastic player, he's got so much ability and he's a really good character.
"It's nice for the manager to be able to go out there and attract these players to want to come back.
"It's a nice little pat on the back for us as players and staff that the environment we put him in last time he was desperate to come back to.
"We'll welcome him with open arms and it's good to see that the deal is done pretty early on in the summer and we can get a good pre-season out of him."
Everton are to honour former striker and current first-team coach Duncan Ferguson, who as a player scored 72 goals in 273 appearances in two spells at the club, with a testimonial this summer.
Spanish side Villarreal, the opponents for the Toffees' controversial Champions League qualifying defeat in 2004/5 when Ferguson had an apparently fair goal ruled out by referee Pierluigi Collina, will be the visitors to Goodison on August 2.