Dice Effecting Mechanics???

Here is a list of things to try (apologies for duplicates):
- Reroll any other die from your pool
- Force an opponent to reroll a die from their pool (the may or may not be allowed to choose)
- Flip a die of your choice to its opposite side
- If doubles are rolled on the first roll, double that result (for example: two fists rolled at the outset equals four fists)
- If all dice results are different, the player chooses one of those results to be duplicated on all dice. (for example if there are three dice and after roll 1 a player rolls a skull on one, a star on the other, and a fist on the third, then they may choose which of those three results they want to have replicated on all three dice)
- For this roll only, an opponent's skull results become stars (player can substitute stars and skulls for some other result)
- A star (or other face) reduces the number of dice the opponent may roll in defense (or their next attack)
- Before rolling, player announces how many of a given face they expect to roll. If their guess is correct, they double their result.
- Before rolling, choose a face result. For each of those the player rolls, their opponent must subtract a corresponding result from their own dice roll.
- If all dice rolled are the same result, the player may choose a result for one of their dice the next time they roll instead of rolling it.

I'm sure there are other ways you can have the dice interact with the game, but those are some that came off the top of my head.

Two additional pieces of food for thought. Both involve Reiner Knizia.

He released a book some time ago called Dice Games Properly Explained. I've personally found this book invaluable in figuring out how to use dice in games of my own and as examples for others to play. There are loads of game rules included. One of my personal favourites is included: "Throwing Sevens." If you can track it down, it's well worth adding to your library.

Knizia also developed a lightly-themed free dice game called Decathlon that has several accessible dice games in the same place. Someone else developed a Heptathlon game in the same vein with a bit more player interaction. Look them up on BGG and you can learn a lot.

Best of success with your design, Milostnik! :)