The phrase "ever fierce" is correct and can be used in written English.
It is commonly used to describe something or someone that is constantly or consistently fierce or intense. Example: - The team had a winning streak that seemed to last forever, their defense ever fierce and their offense unstoppable. In this example, "ever fierce" emphasizes that the team's fierceness was always present and never wavered during their winning streak.
Instead, the competition for time and attention becomes ever fiercer, and the market ever more fragmented.
The new tech media companies competition for hits is getting ever fiercer.
The latest iPhone launch is crucial for Apple, which has seen sales of the device slip amid ever fiercer competition.
They are also facing ever fiercer competition at home and abroad, which makes them increasingly sensitive to costs including the costs of regulation and tax.
For years the format has been showing its age, and for both King and CNN the competition has been growing ever fiercer.
As the government begins to fall back on itself, inciting fears of foreigners, mobilizing provocateurs and cracking down on its opposition, it faces an ever fiercer revolutionary fervor, with ever more sweeping demands.
Newspapers glutted themselves on advertising from promoters calling for subscribers to their schemes.Share prices shot up, peaking in 1845, even as the amounts of capital being committed to the industry made competition ever fiercer and business plans ever rosier.
And secular-religious conflicts over what the Jewish nature of the state should be, as well as what to do with the territories occupied since 1967, have become ever fiercer.
What was revealed was the extremists' mania for an ever fiercer, harder Brexit: nothing will be enough for John Redwood, Bill Cash, Bernard Jenkin or Peter Bone who spoke out to back David Davis's refusal to make the single market a priority.
But rather than support the Malaysian government in the first month or so, China seemed to incite the distraught families into ever fiercer, often histrionic, criticism of Malaysian officialdom, perhaps to deflect attention from the possibility that the plane might have been downed by home-grown terrorists.
