Shit man, I would pull up a picture index of the entire Republican party leadership as well as everyone funds and backs them and just start scribbling names down until my hand hurt and then I would just keep going powering through the pain.

Because Light isn't a good person who's corrupted by power, he's a teen with a superiority complex who suddenly gets the power to kill a bunch of people. He is the tinpot dictator.

Yes. Also, most criminals are not evil, they were forced to do crime due to socioeconomic factors. Factors influenced by billionaires and politicians.

And all the backers.

The method of death can be specified, and it never says that you can't summon a moderately sized bomb, or a virus that only kills under very specific circumstances. We're dealing with the supernatural, let's go a little wild.

...honestly, it never said you can't make the deaths wicked cool, man, so why don't we have a pile of gold fall from the sky onto our hated enemy that just by happenstance happened to be near me. Strange how the gold is mostly gone, officer, but I swear, it was like a dragon's hoard or something.

"AFRICA!"

"Uh Light that's not how it-"

"MEXICO!"

Lol! One should try to live their life in a way that multiple people don't independently wish you a painful, embarrassing diarrhea death in front of the whole planet.

while accurately parrying any attempts to help him, and then have a seizure in the shit while still fending off any would be rescuers.

Gotta have someone slipping on the shit and dying from head trauma right afterwards for maximum lol

There's a two week limit between the name being written and the target dying.

"Three days after signing, notarizing and registering all required documents necessary to collectively devote their entire fortunes, stocks and options to an irrevocable trust in support of renewable energy implementation, social welfare systems, sustainable development in the global south, returning resources leased to foreign companies to local citizens, and solving wealth inequality (with trustees selected from currently-living Nobel laureates in chemistry, medicine and economics, the IPCC, and the WHO), Elon Musk, Jeff Bezos, <list all current members of the boards of Nestlé, Google, Apple, Sinclair Broadcasting, United Health, and other insurance conglomerates by name here> all make the collective mistake of riding cybertrucks to the second trust meeting and perish in the resulting inferno, which miraculously leaves no lasting damage on infrastructure, nor causes collateral injuries."

Still a chance of splitting up the money with the descendants cannibalizing each other and fighting over the owning classes corpse.

Generally you don't need a will to keep wealth in the family, anyway.