Mina, who was linked with a move to Manchester United for much of the window, arrives a the club in a £30 million deal, providing boss Silva with the defensive lynchpin he has been so desperately craving. However after the initial loan Southampton will have an obligation to buy the Englishman for £20 million.
A summer that started with the intention of balancing the books ended with a flourish as Farhad Moshiri, Everton's major shareholder, sanctioned a deal for Mina, which took the club's spending to about...
Multiple reports said the Toffees also had reached a deal with Chelsea for the loan of defender Kurt Zouma, though that has yet to be confirmed with the deadline passed.
'It is important that the club want to fight for something, ' Mina told evertontv.
Everton and Fulham stole the show on the Premier League's transfer deadline day, as both clubs welcomed several eye-catching signings.
'They are historically among the four most successful clubs in England and when I found out about the club and what the manager wanted from me, I was happy. Everton always was a big option for me, especially after speaking with the coach, Marco Silva.
The 23-year-old only joined Barcelona from Palmeiras in the January transfer window.
Gomes, meanwhile, had struggled to force his way into Barcelona's side on a regular basis last season.
"Bernard is a great player, a player for the Brazilian national team, and I also followed his progress with Atletico Mineiro", Richarlison said on Wednesday.