Playmaker Bernard arrived on a free transfer after his contract ended with the Ukrainian club while Barcelona said Everton had agreed to sign centre back Mina for an initial 30.3 million euros ($47m) and have taken midfielder Gomes on loan.
Everton secured the services of Colombian World Cup star Yerry Mina from Barcelona on an unusually quiet deadline day in the English Premier League as Manchester United failed to satisfy manager Jose Mourinho's desire to sign a centre-back.
During negotiations for Mina, Everton were offered Gomes on a season-long loan, the Portugal midfielder having struggled at Barcelona since his €35m (£31.5m) arrival from Valencia two years ago.
Brazilian winger Bernard has revealed the key role Everton boss Marco Silva played in convincing him to move to Goodison Park despite offers from Chelsea, West Ham and AC Milan.
"It is important that the club want to fight for something".
Everton, who finished eighth in the Premier League last season, have always been viewed as the side most likely to mount a challenge to break into the illustrious top six. Everton always was a big option for me, especially after speaking with the coach, Marco Silva. This is a great opportunity for me and I am looking forward to competing here.
He only joined Barcelona in January for £10.44m from Brazilian side Palmeiras, and played six league and cup games as Barca were crowned 2017-18 La Liga champions. "I believe I will be able to show my best as a player here".
Moments later they also confirmed that Portugal global Gomes would join the Premier League side on loan.
"I spoke to Lucas and he told me all about the Club, which also made me keen to come here".