alliance disruption could work but quite long

Thanks for the better word... sabotage. That's what I was thinking, but couldn't bring the words out. )

and when you use the card on the selected bonus, nobody can deploy armies, attack/attack from those territories, so it would be more like a combination of diplomacy/sanctions card

Did you already put the suggestion on UserVoice? If / when you do, please post a link in this thread so people who want to vote for it can do so.

dont listen to the people who think it s a bad card, EVERY card is bad with the wrong settings, and, additionally, with the right settings, EVERY card is good.
i can see this card make certain games more interesting, aka, games with big and small bonuses(right now i play a map that has both a bonus of 1 army/turn and a bonus of 27/turn) and games with negative bonuses.
an additional idea for this card might be to have the option(in settings) to have it affect a single bonus OR a bonus and every other bonus that has a territory inside that bonus(possibly with lower reduction)
Off course, if this gets implemented i assume Fizzer will make it capable of making bonuses generate more income as well, which will give us even more diversity in gameplay *like*

If you wanted it to make it generate more income just set it ton negative.

that s what i said

please vote
http://warlight.uservoice.com/forums/77051-warlight-features/suggestions/2828314-bombardment-card

i think it should be so that a bonus becomes worth 0 for the rest of the game (bombed to oblivion)

-----------

it would have to be very rare though

what? are you crazy?, that would unbalance drastically all the game