Negative seo is not done by blasting links.
If you wanna nuke someone, build a foot print.
Make them a big fat, barely spun interlinked footprint and then ping the hell out of it.
Mess with their anchor credibility by wacking them with exactly one term 1000s of times.
Set your scraper to grab their content minutes after they publish it, then duplicate it all over the damn place + ping google to check your sites out first.
DMCA them or claim email spam.
Email them about buying links for a different but related term. - Point it towards something that looks legit initially. Then turn the page into crap fest of malware and penis pill links so they get penalized for linking to you.
Buy them crap traffic or a bouncybot package.
- -- Actually dont do that unless you are a giant fucking douche.