This term, only Leicester City's Wilfred Ndidi and Aaron Wan-Bissaka of Crystal Palace can better the Everton man's record of 108 successful challenges - the pair each being one ahead on 109.
However, Gana also demonstrated his creative capabilities when driving forward to play a part in two of Everton's goals against Cardiff City last month and Silva insists the 29-year-old's style is of duel benefit to the Blues offensively.
"Gana is really aggressive, he is fast in both transitions and it is important for us," Silva told evertontv.
"With him there we can have the other players freer to support the attack but he has the quality [in attack] also.
"In our third goal against Cardiff, not just because he carried the ball, but the way he took out the first player, it was really, really good.
"And the assist, the pass, was very good also.
"The pass we can see from Gana [often]. But that dribble he made is not something that often comes from him, because of the position he plays.
"But he has this quality also and in that moment he showed that confidence [to do it] and it was an important moment for him – and a good assist for Dominic [Calvert-Lewin]."
Since that victory in south Wales, Everton have produced strong home performances to earn a point in the Merseyside derby and defeat top-four chasing Chelsea, either side of a frustrating away defeat at Newcastle United.
Everton return to Premier League action with a trip to West Ham United after the international break and Silva is keen for Gana to continue showing his attacking teeth as the Blues aim to climb the table in their remaining seven fixtures of the campaign.
"It is easy for you to understand how Gana has been really important for us since the beginning of the season. And he was last season also," he added.
"He is having a really good season, he is doing well.
"But, of course, I will always want more and he is a player I believe can do better and better things, better decisions also because he is a talented player.
"[We want him to be] playing forward more in some moments because he has this quality and it can help us even more."