Probability Manipulation

[temnix]

From making things likely that were unlikely and the other way around to having a tank roll up from around the corner, this power set would involve luck in different ways. One power, for example, could be called Coin Toss: it would give the target enemy either +100% to Accuracy or -100% to Accuracy. This could make an enemy very easy or impossible, and it would be random. Slips and falls for no reason, as a 1% chance of Knockdown per second. A variation called Probability Armor is also possible: Defense bonuses, Accuracy debuffs and things like a chance that every enemy in range will be smashed by a flyby object, after the manner of Propel. For the ultimate power, Deus Ex Machina: one of the signature heroes or villains from the Rogues Gallery shows up just then to help the character for a while or resurrects him if dead.

[Starhammer]

Slip and Fall would be a good aura power, giving a penalty to Acc & Def, along with that 1% chance for .67 KB... or maybe even Knock Up to make it more of a comical pratfall (and prevent it from turning to full KB on clockwork)

I expect a power like Coin Toss having a chance to buff an enemy would be unpopular and frustration. I would suggest something more like having a chance to buff allies or debuff enemies. You could probably re-engineer the mechanics of Radiation Armor's Ground Zero for such an effect

a confuse effect would fit well in the theme also.

I could see fleshing this out into control, support, or armor powersets.