
Remember: these are just ideas, and I by no means claim that they're any good!
Lets have a new Skill category "Fouling Skills". Dirty Player goes into this category, along with the following:
Sneaky Git - Fouls committed by this player may be declared "Sneaky". While the ref still has a chance to spot the foul on a 6, the foul will not be affected by IGMEOY - in other words it will always be at 6+ for the ref to spot. In addition, such a foul will not attract the eye. However, the foul cannot be assisted by either side, and the dirty player skill may not be used on the foul.
Gift of the Gab - The player must be on the field to use this skill. The player may, once per half, Argue the call in the same way as the head coach, but will not be sent off if he fails. He may also subtract two from any Secret weapon penalty rolls his team make.
Spike! - the player may, once per game, commit a Spike, as per the old Dirty Trick card.
Fouling is a highly specialised art, and so fouling skills are available to all players, but only on doubles rolls.
One other skill I came up with, which has real intriguing possibilities tactically if we can sort out the turnover implications:
Cut Block (General skill) - The player is adept at taking out opposing players knees from under them in a block.This means, while the player himself spends a considerable amount of time on the ground, his opponents have a much better chance of being knocked down.
This skill neutralises the effects of the block skill. The both down result may not be avoided using the block skill if one of the players involved declares a cutblock. All players involved in the block are knocked down and must make armour rolls to avoid injury.