Akinees the Throne-Lashed is a member of Cult of Terror that attacked Stormpoint Keep and its leader.
Lore
Akinees has faithfully served his master as the current leader of the Cult of Terror.
Around 1272, he led the Cult of Terror to besiege Stormpoint after a shard of the Worldstone had been divined to be on the island. As they could not divine the precise location of the shard, he ordered them to storm the island with demonic reinforcements, killing any opposition they encounter and using the survivors for haruspex.
At a point, he invited the Bride of Hell to inspect his progress, but was interrupted by scrying on their location. Unfortunately the strangers got away.[1]
Impatient with the progress of the search, he summoned the Howling Terror to hunt the shard from the skies.[2]
The cult made a base in the Planks, and Akinees resided in a Tidal Cavern beneath the base. Here, captured villagers from the Shanties were delivered to him for sacrifice. Unfortunately the Shard-seeker found him and was able to drive him off.[3]

Unknown to the Shard-seeker, Akinees kept track of their progress through divination. Once they retrieved the shard from the Warden's pet, he sent cultists to attack children under the Shard-seeker's protection. Using that distraction, he stole the shard and portaled away.[4]
In-game

Akinees is the first boss encountered in the Terror's Tide storyline of Diablo Immortal. He is fought in the Tidal Cavern at the end of The Planks. Hecan teleport, summon parts of big Demon and electric orbs. After his defeat, he escapes through a portal.
He makes other appearances at later points in the storyline, appearing in the quest Bound for Eternity. He is also featured in the Destruction's Wake update, in the quests My Father's House and Creation's Husk. At the end of the latter,he is featured as a mini-boss where he is killed.
Quotes
- "They are more in death then they ever were in life."
- "May depths claim you all."
- "Fear guides your every move."
- "You seek to frighten me, more than the Lord of Terror himself?
I will show you fear." (after being threatened by the Shard-seeker) - "Great One! Ease from your throne and burn the sky black." (Summoning Shumbeel to battle the Shard-seeker)