Once you harvest a Tier 4 seed, the Heart of the Grove will start growing. It requires 100 cycles to grow, and the growth cycle will only advance in zone level 78 or higher. Once it finishes growing, you can fight the Avatar of the Grove.
It requires 100 cycles to grow, and must be done in maps of zone level 78 or higher.
Oshabi, Avatar of the Grove is the boss of Heart of the Grove. Once it finishes growing, you can fight her.
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According to the GGG's statistics, fighting Avatar of the Grove is not difficult. As you can see, just shy of 90% of encounters that were started were successfully completed; a fairly high success rate for a new boss. There's no question that this boss was considered to be on the easier side among endgame bosses, and the statistics seem to agree with that sentiment.
After PoE version 3.11.1: the Heart of the Grove monsters and bosses now have a chance based on their rarity, with higher-tier seeds having a higher chance, to drop a new plantable "seed". This can be placed in the Sacred Grove and will affect planted seeds around it, granting nearby seeds additional properties on being Harvested.
|Seed Enhancer Name||Effect|
|Fortune Bud||Seeds in radius give the rarest of 2 chosen Crafting Options when Harvested|
|Fortune Flower||Seeds in radius give the rarest of 3 chosen Crafting Options when Harvested|
|Fortune Blossom||Seeds in radius give the rarest of 4 chosen Crafting Options when Harvested|
|Lifeforce Bud||Seeds in radius produce 100% more Lifeforce when Harvested|
|Lifeforce Flower||Seeds in radius produce 150% more Lifeforce when Harvested|
|Lifeforce Blossom||Seeds in radius produce 200% more Lifeforce when Harvested|
|Horticrafting Bud||Seeds in radius have 20% chance to generate additional Crafting Options when Harvested|
|Horticrafting Flower||Seeds in radius have 30% chance to generate additional Crafting Options when Harvested|
|Horticrafting Blossom||Seeds in radius have 40% chance to generate additional Crafting Options when Harvested|
Generally, Oshabi's attacks are slow, so it's easy to avoid. With the exception of her Root-ring skill, which requires you to have a high DPS to break out quickly, otherwise, the arena will be covered with a lot of yellow-patch. If had built a high DPS, you can clear all of these challenges immediately while skipping all skills. Meanwhile, you can invite experienced players to complete these challenges for you as well.
Harvest the Heart of the Grove under each of the following conditions.
During ORANGE PHASE, Sacred Suffering is the yellow patch created from her circle-root-wall skill. When you're inside the circle, you'll have to break the wall ASAP or else the middle totem in the circle will start create more yellow patch on the ground, that deals phys-degen damage. So the faster you break the wall, the lesser the yellow patch ground she's created. Also this yellow patch seems to be permanent, it won't disappear till the fight end.
During PURPLE PHASE, she'll have a charge up animation then shoot out a purple-vortex-version that shoot out purple projectiles. Best to hide behind a wall when you saw her her charging up the skill.
During GREEN/YELLOW PHASE, she'll spawn a giant hammer that'll slam the ground and deal splash damage, kinda like earthquake but with short duration and chartreuse color. Run away as far as you could when you saw the yellow hammer appear, the AOE splash is quite huge so advice to run away on sight.
During BLUE PHASE, she'll have charge up animation then spawn out a row of snakes, then those snakes will turn themselves into blue-balls that'll chase towards you. Try run away from them then they'll disappear after few seconds.