"Educated Guess" values have been recorded from Corecraft test server which isn't a primary source (credit for that research goes to NiM and Shiro). However, when I've tried to verify some of their values now and in the past, they've come out pretty much right and in my opinion are preferable to any guessed values and can be used for the time being until primary sources are studied.
Mob
Damage
Health
Mana
Abilities
Immunities
Source
Comments
Bloodwarder Protector
4200-6200
21881
3155
Intervene, Spell Reflection, Crystal Strike for 2625-3375
Immune to MC
Educated Guess
N/A
Tempest-Forge Peacekeeper
5900-8600 (arcane)
70836
49635
Arcane Volley for 1665-1935, Arcane Explosion for 1040-1210, Arcane Blast for +875-1125
Greenkeeper's Fury for 3900-4100, Nature Shock for 2625-3375, Impending Coma
?
Educated Guess
N/A
Bloodwarder Mender
1600-2300
19805
21588
Mind Blast for 3600-4100, Holy Fury, Greater Heal for 9000-11000
?
Educated Guess
N/A
Bloodwarder Falconer
2150-3000 (melee), 500-800 (ranged)
29083
0
Deterrence, Multi-Shot for +1665-1935, Call of the Falcon, Wing Clip for 20% damage
Immune to MC
Educated Guess
N/A
Bloodfalcon
1250-1750
18862
0
Swoop for +54, Charge for melee damage, Bloodburn for 324-376 and increases arcane damage taken by +100
?
Educated Guess
N/A
Bloodwarder Steward
3050-4400
28293
0
Arcane Flurry for extremely heavy damage at melee range (presumably melee damage as arcane, datamined spell doesn't show exact effects) and shoots arcane missiles for 1750-2000
Fear, Death Coil, MC
Educated Guess
N/A
Commander Sarannis
4300-6100
149445
0
Arcane Resonance for +1200 arcane damage taken, Arcane Devastation for 50% melee as arcane (+1200 per Resonance stack), Double Attack, Summon Reinforcements after 60s
Immune
Educated Guess
On normal difficulty adds are summoned around 55%. Add summon timer based on the earliest video I could find
Summoned Bloodwarder Reservist
940-1320
7073
0
Arcane Strike for 500
?
Educated Guess
N/A
Summoned Bloodwarder Mender
1600-2300
19805
21588
Mind Blast for 3600-4100, Holy Fury, Greater Heal for 9000-11000
?
Educated Guess
N/A
Sunseeker Chemist
1575-2275
22488
3231
Vial of Poison ticking 900, Fire Breath Potion for 2960-3440
?
Educated Guess
N/A
Greater Frayer
705-980
12118
0
Lash for 2312-2688
?
Educated Guess
N/A
Sunseeker Botanist
1550-2300
22488
16155
Nature's Rage (cast at plants), Rejuvenate Plant (cast at plants) ticking 4% health, Regrowth for 7000-8000 and ticking 1102
?
Educated Guess
N/A
Sunseeker Researcher
1240-1880
22488
16155
Poison Shield proccing Virulent Poison ticking 330, Mind Shock for 900-1000, Frost Shock for 1100-1250, Flame Shock for 570-610 and ticking 200
?
Educated Guess
N/A
Frayer
700-1000
6986
0
Shift Form (not seen as buff) being able to grant them Arcane/Frost/Shadow/Fire Form
?
Educated Guess
Sunseeker Geomancer has RP in which he casts arcane explosion/rain of fire/blizzard on them so frayers can come pre-buffed. Wowpedia claims they "grow to enormous size (and consequently do enormous damage) if not banished or killed quickly" but I'm very confident that's bullshit seeing as that some post-Cata videos showed players pulling the entire instance without anything happening to frayers and Nature's Rage cast by Botanist would explain the idea of growing plants coming to the author's head
Sunseeker Geomancer
1550-2200
31018
12924
Fire Shield ticking 523-577, Arcane Explosion for 848-986
?
Educated Guess
They've also been datamined for Blizzard/RoF but that might be just RP, I see no evidence of those abilities being used in combat
High Botanist Freywinn
1600-2300
125513
49635
Tree Form+Tranquility ticking 925-1075, Plant Blue/Green/Red/White Seedling
Immune
Educated Guess
Tree Form+Tranquility also summons 3 Frayer Protectors
Frayer Protector
930-1310
5659
0
Shoot Thorns for 800-1000
?
Educated Guess
N/A
Blue Seedling
470-590
1415
0
Bind Feet
?
Educated Guess
N/A
Green Seedling
470-590
1415
0
Toxic Pollen ticking 150
?
Educated Guess
N/A
Red Seedling
470-590
1415
0
Fire Blast for 694-766
?
Educated Guess
N/A
White Seedling
470-590
1415
0
Freezing Touch
?
Educated Guess
N/A
Sunseeker Channeller
3200-4550
Sunseeker Blessing (while channelling crystals, not in combat), Soul Channel for 4164-4836 over 6s, Sunseeker Aura ticking 1110-1290
Mutate Flesheater summoning isn't listed in Wowhead/Wowdb so I can't be confident which mob exactly summons them. Wowwiki says it's Harvester, but that's the kind of detail wikis get wrong about as often as not and since Corecraft deviates from this source, I assume they actually checked which mob does what in retail
Periodically enrages for 110% damage/attack speed for 10s, Hellfire ticking 1970-2510, Sacrifice ticking 642-708
Immune
Educated Guess
N/A
Nethervine Trickster
3200-4500
29083
0
Dual Wield, Stealth, Backstab for +523-577
?
Educated Guess
110% damage increase is reversal of 2.2 changes
Mutate Horror
2350-3350
18671
0
Corrode Armor ticking 855-945
Can be trapped and stunned but not sheeped, feared or hibernated
?
Educated Guess
N/A
Mutate Fear-Shrieker
2360-3350
18164
0
Fear
Can be trapped and stunned but not sheeped, feared or hibernated
Educated Guess
2.1 patch notes mentions reduced hit points but I can't find any source for original tuning (CC has post-nerf values). In addition, there's conflicting information about what exact fear ability they use. A Wowhead comment implies it has cast time while some sources say it's instant. Doesn't appear in Wowhead/Wowdb datamined ability lists either and is completely absent from Bestiary. Verifying the details from retail would seem advisable
Sunseeker Gene-Splicer
1500-2140
19681
7332
Death and Decay ticking 3600-4000
?
Educated Guess
2.0.10. patch notes mention "significantly less damage" on DnD. Later sources claim 2k+ and Wowhead retail values would have been 2612-2888 in TBC if spell damage modifier is consistent in the whole instance. While I can't find a pre-2.0.10 source, Corecraft values seem like a plausible estimate for what the damage was before "significant" nerf
Laj
4800-6600
164389
0
Trash, Allergic Reaction for +500 damage taken and ticking for 1250-1500, periodically shifts between frost/fire/nature/shadow/arcane resistances (starts with shadow) indicated by colour
Immune
Educated Guess
This video gives an indication about Laj's resistances. I'm not going to put the damage numbers to a spreadsheet to actually calculate it but judging by the number of 50-70% resists, it seems to me it's near the cap. Bestiary lists Laj with 500 so that might be it
Thorn Lasher
700-1000
6602
0
Thorn Missiles for 750-900
?
Educated Guess
N/A
Thorn Flayer
700-1000
6602
0
Mind Flay ticking 777
Educated Guess, MF damage from previous video
N/A
Frayer Wildling
700-1000
6602
0
N/A
?
Educated Guess
N/A
Warp Slinter
3200-4700
179334
0
Arcane Volley for 5600-6400, Stomp for 2375-2625 and increasing physical damage taken by 550, Summon Saplings
Immune
Educated Guess
N/A
Sapling
350-700
4483
0
N/A
?
Educated Guess
Upon despawning they heal boss for their remaining health (affected by MS/poison). I measured 25s duration from several retail videos
"Educated Guess" values have been recorded from Corecraft test server which isn't a primary source (credit for that research goes to NiM and Shiro). However, when I've tried to verify some of their values now and in the past, they've come out pretty much right and in my opinion are preferable to any guessed values and can be used for the time being until primary sources are studied.