back after 2 years, what build for mapbosses?

Hi,
i haven't played POE for 2 years now and 5 achievements have been added that i need to do to get to 100%. I need to defeat the infinite hunger, the black star, the eater of worlds, the scintillatiog exarch and the maven.

is there any build you could recommand me going for this achievements?
i still have some L90+ chars, played specters, zombies, totems and earthquake before, but i have no idea how much the game has changed the last 2 years.

thanks :)

RF by Pohx.

Any trap build or bleed build melee build.

Rf is kinda a mediocre opinion since the change of the gem and pretty zpds without investment. The other two options are good on shoelace ground loot day 2 gear.

if you want to use one of your old characters then convert your necro into a BAMA build. can do bosses on a very low budget and is also pretty good for general mapping. i league started with it and had no problems with those bosses that you want to kill