generally cards should have a high enough value in order to make a killing worth while. so you must lose less troops than the set value you'll get in order to safely go and kill somebody. usually if a game hits round 75 it means people will have anywhere from 200 to 3000 troops depending on map. let's assume 3 people have 200 troops and 5 bonus each. escalating starts. the cash in value will need to rise to at least the amount of troops a player has. which is impossible if the stalemate continues. so basically what escalating cards will do is keep the stalemate and increase the number of troops. in any game.
basically because the trade-in values rise by 5 it means the difference between current troops and cash-in value will grow bigger and bigger.
the only possible solution is that the cash value rises more than each player gets per 3 turns. so basically in our example with people that have 200 troops and get 5 bonus per turn it would take a steady rise of 50 troops after each cash-in in order to get the trade value to be at least equal to the number of troops a player has and even if cash values rise by 50 (50-100-150-200) this doesn't guarantee the break in the stalemate.
as said we have 3 players with 200 troops each.
player A cashes a set of 50 he has 250 troops. doesn't go for a kill cause 250vs200 is a close call and the next set is just 100 so he might not have enough for the 3rd guy.
player B cashes a set of 100. has 300 troops now. if he goes for the guy with 200 troops (player C) and remains with just 100 but gets a set it means he'll have250 to kill the last 250 of the player A. very risky so he doesn't do it.
player C cashes in 150 and has 350 now. same idea, he could go for the kill but it would be too much of a close call.
so even with a rise of 50 troops (10 times more than normal) stalemates will probably not end unless somebody takes a huge risk.
but i have a better solution. will post now as a new topic.
here it is:
Armageddon
“In the beginning God said, the four-dimensional divergence of an antisymmetric, second rank tensor equals zero, and there was light, and it was good. And on the seventh day he rested.”- Michio Kaku