In the world of Divinity: Original Sin 2, the Blackroot herb stands out as a key component for players navigating the mystical lands of Rivellon. Essential for the Miester's Ritual in the game's fourth act, Blackroot is crucial for crafting the Ritual Bowl under the guidance of Miester Siva. This bowl, created by combining a ritual bowl, a bloody obsidian lancet, and Blackroot, grants access to the Hall of Echoes and the invaluable Night Vision skill.
During your initial ritual, all required ingredients are conveniently located in Siva's basement. However, subsequent rituals, triggered by earning a Source point, demand that you gather these materials yourself. While obtaining a ritual bowl and obsidian lancet is generally straightforward, sourcing Blackroot can be a daunting task. This guide aims to assist you in overcoming this challenge.
Cloisterwood, a lush and dense forest situated in the northwestern part of Reaper's Coast, is just a short journey north from Driftwood. Upon entering this verdant expanse, utilize the left ALT key to reveal all interactable items and herbs scattered around.
As you explore, you'll find Blackroots nestled at the base of various trees. Although one Blackroot suffices for the ritual, it's wise to collect several to ensure you're well-prepared for future rituals. The number of times you'll need to perform the ritual isn't detailed here to avoid spoilers, but remember, you can undertake it each time you gain a Source point.
Cloisterwood is not only rich in herbs but also brimming with secrets and encounters. You'll meet two NPCs, Hannag and Jahan, who can each help you acquire a Source point. Notably, interacting with Jahan also advances Lohse's storyline. In the ruins, you'll encounter Eithne, an undead trader. Engage with her and select the "Divine Order" option to unlock a side quest.
Further north, near the pier, you'll find the Dead Ferryman NPC, who can transport you to Bloodmoon Island. Cloisterwood is home to numerous other secrets, including the Wrecker's Cave and the chance to acquire a unique loremaster amulet by conversing with the spirit of a ship captain. If you're exploring Cloisterwood for the first time, take the time to thoroughly investigate the area. It's recommended to steer clear of the crucified witch, Alice Alisceon, until you reach at least level 15 to ensure a safer exploration experience.