Collocations for vicious - adj.

be, look, sound
become, get, turn
The computer wars are going to get vicious over the next few years.

extremely, fairly, very, etc.
especially, particularly
a particularly vicious and brutal crime

increasingly

Vicious is used with these nouns:
assault, attack, beating, campaign, crime, cycle, dog, fight, gang, kick, killer, lie, murder, murderer, onslaught, rumour, slander, spiral, streak, thug, twist, tyrant