Government without opposition is absurd and undemocratic, TUV leader Jim Allister has said.
In his speech to the party's annual conference in Cookstown, the North Antrim MLA slammed what he described as the dismal failure of the disconnected power-sharing Stormont Executive.
"By demonstrating the effect even a one-man opposition can have, we have pushed this issue of democratic deficit up the agenda, with others now increasingly conceding that the case for a democratic opposition is unanswerable," he said.
Mr Allister vowed that his party would continue to be a thorn in the side of the DUP/ Sinn Fein coalition and accused the smaller parties including the Ulster Unionists and SDLP of allowing themselves to be walked over.
He said: "The sooner the SDLP and UUP recognise they are doormats in government, rediscover their dignity and independence and step out to distinguish themselves in opposition, the sooner will this fundamental of democracy return to Stormont."
During his speech, Mr Allister was scornful of the work done in the Assembly over the past year and said the Government was in need of drastic reform.
"Bloated with 108 MLAs when half would be enough," he said. "Twelve departments when six would do, waste beyond belief on 161 spin doctors, £5 million on hospitality, £400,000 on photographers, an undisclosed sum on foreign travel and still £100 million to squander on useless north-south bodies and £20 million on a shrine at the Maze.
Earlier in the speech Mr Allister claimed that Sinn Fein could do more to tackle the threat posed by dissident republicans who killed prison officer David Black.
The 52-year-old father of two was gunned down on the M1 as he drove to work at Maghaberry prison on November 1. A new grouping calling itself the IRA has claimed responsibility for the shooting.