Dark Pact Berseker reigned in Harbinger league, but after the nerf to Vaal Pacr, Dark Pact and Warlord’s Mark it went right into the abyss of “meme zdps offmeta”.
I wanted to check what’s the state of SELFCAST Dark Pact today and honestly, it’s not worth it. It’s pretty bad. Hard to everleech massive health drain along with RF (without RF damage is shit). Mana flask is useless in boss fights along with massive cast speed. Tiny chaos leech on the amulet just cannot sustain big damage hits.
Here is the T14 footage and a small build guide i got for you, but use it only if you want to meme the hell out of it or for nostalgic reasons.
I will leave path of building here, in case you are interested.