Who are viktor's Evolution enemies?

Evolution involves all the battle cast themed champions as his army. Also involves other Mecha themed champions in an unexplained way due to being the one who created Mecha Zero And Project themed champions Due to sightings of both Battle cast champs and project champs in the same splash art .

So which champions are the resistance against evolution.

Also did revive the champions as battle cast mindless or they have memory of their goals ?

As is seeking to disintegrate him to obtain the knowledge he possesses about time manipulation.

So if they try to do that for example who will stand in their way ?

There is an enemy for each normal champion but there is no "battle cast" enemies.

As Riot turns it to a great lore . it feels somehow separated from the game . it needs interaction with other champions.