For Challenge # 019. I stole tactics from Decipher's now defunct Star Wars CCG. That game had a lot of good things going for it. Among them was a destiny number in the top right hand corner. Whenever you initiated combat, both players would flip the top card of their deck, then add the destiny to their side's total power. It added a bit of luck, but only so much, since the amount usually stopped at 6... so a blowout of 25 to 12 was still going to win no matter what we flipped. Furthermore, it allowed Decipher to print intentionally weak cards, and situation specific silver bullets that people enjoyed putting in their decks, because they won the occasional lucky flip off of them.

Flipping the top card of your deck for each attacking/blocking creature would probably be prohibitive (at least, the way the game is now... you could build around Magic and make the game about the "one big creature" effect, or have all the creatures make up teams at certain locations, like Star Wars did). Alternatively, Tactics could operate like Clash did... except revealing Tactics happens a lot more often. Many players would complain about the amount of randomness going on here, but if developed well, this could work well.

Ah, yes - "draw for destiny". Seen that mechanic in a few other games, such as .hack//ENEMY.