http://elementscommunity.org/forum/card-ideas-and-art/link-crucible-candidates-here!/
Post it there.
Yeah, I know where to post it, do you guys think I should post it to crucible?
Dude, I am going to dissapoint you, but no. Your idea is very similar with other card ideas and one of them is already at armory, thus your card has really low chances of succeeding. It may be better to post another, more unique idea of yours.
My suggestion is to take a look at both Armory and Forge card ideas (even Forge Archive if possible) in order to see every idea implemented in the past and create something truly new, interesting and unique!
However, I don't want to discourage participation at CI&A sections, so go for it, if you truly want it.