Their hosts produced the year’s biggest win yet when they strode effortlessly past meek Hull KR 84-6 on Easter Monday.
That came after an impressive Good Friday defeat of derby rivals St Helens as Shaun Wane’s side continue to make a mockery of pre-season predictions they would freefall after the departure of stars such as Brett Finch, Thomas Leuluai, Jeff Lima and Gareth Hock.
Yet Wakefield, who defeated Castleford Tigers before squandering an early 10-0 lead to lose 34-22 at home to Hull FC on Monday, head over in positive mood.
“It is a game we have got nothing to lose in,” insisted Agar.
“I want our boys to go and throw everything we’ve got at them and hopefully we can go there and put up a good show and be really competitive.
“Wigan are an exceptionally powerful, strong and fast team and their performances in some games this year have been outstanding.
“I won’t read too much into such a one-sided affair as the Hull KR game but against St Helens I thought their first half hour was outstanding.
“It confirms what a quality team they are. Some people might have been asking questions about them at the start of the year, having had such a turnover of quality players.
“But it would appear they have eased effortlessly into a very good system and they have a very strong team full of high calibre rugby players and athletes,” he added.
Agar has no new injury worries, but Anthony Gelling replaces Josh Charnley (ankle) for Wigan, who are also without Sean O’Loughlin (back).
Meanwhile, Trinity are considering re-arranging their postponed home game with Leeds Rhinos for the Thursday night before the Tetley’s Challenge Cup fourth round if both clubs draw lower league opposition.