I have been messing with the combat system lately in my game called Monumental Resolution (MonRes for short). The Predator Prey system to me is stale and boring at times (this type can kill this type can kill this type can kill this type etc.). So I have been trying new ways of allowing ALL cards the possibility of killing any other card, meaning you don't have to be in a specific group to kill a card. Balancing this is tricky...
For more info on the game... http://boardgamegeek.com/thread/1237619/wip-monumental-resolution-new-ag...
Since a player can create his/her own deck he/she has the power to create a deck full of High health cards which most people want even if they cost a ton. So there needs to be a way to balance this. It would work like this...
Each card would be given an attack value and defense value. To kill a card your attack value must be above or equal to the enemy cards defense. Cards can attack more than once but with a price.
So a card with 1 attack could kill a card with 5 defense but will pay significantly more action points (Mentum Resources) than a card with a natural 5 attack.
The problem with this though is that abilities are not as useful.
Lets say you have a 3 attack and 2 defense card that has the ability to go under enemy cards comes across a 2 attack 3 defense card. If the ability costs more than the attack value obviously killing the card is the best choice. Even if the ability is LESS, players would be more apt to eliminate the card than go under it.
What this system does is significantly limits what kind of abilities are on cards. Not a fan of it.
Now what if the cost to attack was A LOT more. Maybe for every attack value you have to pay double that. A 2 attack actually costs 4 to attack.
The thing is, what kind of rule needs to be administered when attacking more than once? +2 to each attack cost? +3? It seems like a lost cause...
Suggestions?
This seems extremely complicated to me for some reason. That combat system doesn't fit too well with the mechanics. Cards aren't allowed on the same space (unless given the EMBRACE badge). Buy this could work for many other games and is very intriguing.
Exponential might work although I'm afraid abilities are still out of reach. There was an idea to gain points for activating cards and using abilities. So you would need to use abilities in order to gain enough points to attack. Still seems clunky and complicated.