Darkshore Quests

Pick up Breaking Waves of Change from Darnassus to travel to Lor'danel — this breadcrumb quest counts toward the achievement and is the intended starting point for the entire Darkshore quest chain.

Work through the quests in order: The Last Wave of Survivors, Threat from the Water, A Taste for Grouper, The Boon of the Seas, Buzzbox 413, No Accounting for Taste, Buzzbox 723, A Cure In The Dark, The Corruption's Source, A Troubling Prescription, The Final Flame of Bashal'Aran, A Love Eternal, Solace for the Highborne, A Lost Companion, Unsavory Remedies, Twice Removed, Ritual Materials, The Ritual Bond, and then choose one of the Spirit blessing quests (Spirit of the Stag, Spirit of the Moonstalker, or Spirit of the Thistle Bear).

Three optional quests also count toward the achievement: Bearer of Good Fortune, Writings of the Void, and Breaking Waves of Change — complete these if you need additional credit.

Hellscream's Missive is a drop-based quest item, so keep looting enemies in Darkshore until it drops to trigger its associated quest.

Jump into the Maw of the Void whirlpool in Darkshore — this triggers a cutscene that warps you into a sunken ruin area where you can kill a named NPC whose drop begins the associated quest, which counts toward the achievement.

Rit'ko's Key is a drop-based quest item found in the Shattervale cave area and begins a quest that leads to three follow-up quests in Lor'danel, which can fill in any missing quest credit toward the achievement.

The Protection quest starts in Darkshore and counts toward the achievement even though it concludes in Ashenvale — seek it out if you are still short on quest completions.

Overseer's Orders is another drop-based quest item in Darkshore — loot enemies in the zone until it drops to begin its associated quest.