But although McNicholl often set the field alight in his two seasons for Canterbury, he has yet to play a Super Rugby match and the step up is an increasingly large one.
The Crusaders' other wing option is Adam Whitelock, a steady player with a good work rate and excellent defence but lacking Guildford's speed and ability to sniff out the try-line.
Guildford's alliance with Hawkes Bay mate Dagg often results in tries and he can also be effective running angles off first-five Dan Carter.
New Zealand Sevens player Kurt Baker is the only other specialist outside back option for the Crusaders after they picked him up in their wider training squad.
New Crusaders backs coaches Tabai Matson and Aaron Mauger will be forced to consider new ways to breach opposition defences without little No 11 Guildford.
The pair replaced Daryl Gibson, now at the Waratahs, as Blackadder sought to add more attacking flair to a backline which failed to click as it should have over the past four seasons.
It's not a crisis for the Crusaders - they will quickly put this behind them and back themselves to cover for Guildford's absence - but it is an unpleasant disruption as they seek to win their first title since 2008.
The NZRU banned Guildford for four matches after his post-World Cup exploits in Rarotonga in 2011. He missed the Crusaders' round one fixture against the Blues last season, with the rest of the suspension served during the pre-season campaign.
The latest revelations appear to show that Guildford has yet to resolve the issues that surround him. He perhaps never will, but while the Crusaders will continue to support him while he is in their charge, once Guildford is gone he will need help from other sources.
Meanwhile, a weakened Crusaders will move on and look for others to help them add another title to the seven they already hold. Such is the ruthlessness of professional sport.
