Battle for Azeroth has been a very alt-unfriendly growth, but as the busy Patch 8.3 grind begins to settle down, it may be time to dust of a second character. Maintaining up requires some hefty effort the first week, even as you move throughout the intro quests and do your first series of Horrific Visions to acquire your fresh Legendary cloak leveled. (Hint: Every single time Magni tells one to meet him someplace, speak with him again. He doesn't offer you the chance to skip situations until you do.)
But after the first effort, you can keep on an alt by doing the weekly significant attack, the biweekly lesser assaults, one Horrific Vision, and whatever daily minor dreams you figure out how to squeeze in--those tend to only take a couple of minutes. You'll end up with two essences to your Heart of Azeroth legendary neck only from doing these steps, and another if you participate in this Ny'alotha raid on such character.
The Worldvein Essence, obtainable by running the weekly Island Expeditions pursuit, is relatively easy to obtain and has been recently buffed substantially, getting off the top essences for a few courses.
Essences stay the stumbling block for alternate characters, but it's possible to get an alt in reasonable shape in 8.3, or even absolutely min-maxed.
It's a very long chain, ending at the capability to become a giant purple evil wraith, marked on gamers' maps as a rare creature with extra rewards. You'll be hostile to both factions, and if you can kill several gamers until you're killed, you'll reap a few rewards. Amusingly, players who kill you will obtain the very same advantages as murdering other rares, including money, and azuriteneckpiecesthe power for their neck pieces.