Right...as suggested by Balrog, I've shifted all the ideas into one post, and people can discuss away without the suggestions getting lost in the mix (which is what I think Plasmoid wanted to avoid.)
If you want to add a skill idea, send it to me in a PM and I'll add it to this list.
Plasmoid:
Dirty Block:
"This player is skilled at making highly dangerous and highly illegal blocks. If a block made by this player results in "both players knocked over" result, then this player can knock down his opponent even if the opponent had the block skill. If he chooses to do so, then make an IGMEOY roll and move the IGMEOY marker, just as if the player had committed a foul."
I like this skill because it can be used by finesse teams and basher teams alike. Bashers can use it to bring down that all important blodge player (though it may cost them one of their bashers) - and finesse teams get the chance to do something else with the IGMEOY counter other than either sit on it or engage in a fouling war.
Thadrin:
Cutblock:
A player with this skill is adept at taking down any opponent by chopping them down at the knees.
A player with cutblock may negate the use of the block skill when blocking or being blocked. All players involved in the block are placed prone but no armour rolls are required. The use of this skill will result in a turnover if used during the opposing team's turn.
(I realised today that an unscrupulous player could use this skill to avoid making armour rolls if he didn't also have the block skill. I modified the idea to include a pay off that the opponent wouldn't be required to roll armour either.)
Redfang:
Dirty Kick (I know it is originally a Kicking Skill, but it could make a nice general skill if kicking rules don't become official)
Description can be found in the 2002 Annual or following this link:
http://www.midgardbb.com/Skills.html#dirtykick
Dark Lord:
Playing Opossum:
When this player is prone and being fouled he may roll a D6, on roll of a 6 he is just waiting for a chance to surprise an attacker. he leaps to his feet and throws a block on his attacker. No assists count for either side.
Duff:
"Faking it".
The player goes down and stays down, regurdless of armor or injury rolls. It was conceved as a way to leat a downed treeman get off the field befor 1/2 dozen opponents start fouling, again and again because thick skull prevented the KO result.
Relborn:
TOUGHNESS (Trait)
The player may substract 1 from every injury roll he has to make.