Just as an idea Id drop School of Sharks for Spirit Shark so you trade off 1 AoE for a ST.
Also if you have enough Recharge which you should do with Hasten then often all you will need is 2-3 ST attacks as they recharge fast enough that by the time your 2-3 attack has gone off the 1st has recycled.
On my Crab build that is in progress of buying the IO's I only have 2 ST attacks slotted with Spirit Shark as a single slot so I could unlock Arctic Breath. Even against a single tough enemy (Boss, EB, AV, etc) where you dont want to be spaming your AoE's you will still want to be using Venom Grenade for the -Res so any gaps is ur ST chain will be somewhat alleviated with VG.
One other thing (just quick) CT:O. Some people love it and others hate it as a wasted pick as you also get TT:L. Either way if you want it 2 extra slots is overkill - only use the default single and move the others elsewhere.
Find a area to focus on and build for that. I aimed for Ranged Defence as I hover Crab to keep out of melee where possible and Recharge for the AoE's to come back faster.
And something I just saw you will NEED Stamina 4 slotted and Health AT LEAST 2 slotted for the Numi/Miracle procs (ideally 3-4 slotted).
Crabs are END suckers - even with the Cardiac Alpha at 50.
So my Crab Spider is lvl 38 right now and he's just an AoE crab, has 5 AoE skills, spiderling pets and whatnot and I have fun with him, but there are moments when I'm on a team when my aoe isn't that useful. Like when mobs die too fast or they're too scattered. I feel like an alternate build for ST or something would be good to have but I've only seen people make AoE crabs so I'm not sure how to make a decent secondary build.
This is my current build that I plan on using on him. I didn't put any enhancements because I don't know what IOs are good to use and I can't afford any at the moment as it is.
Villain Plan by Mids' Villain Designer 1.952
http://www.cohplanner.com/
Click this DataLink to open the build!
Level 50 Natural Arachnos Soldier
Primary Power Set: Crab Spider Soldier
Secondary Power Set: Crab Spider Training
Power Pool: Leaping
Power Pool: Speed
Ancillary Pool: Leviathan Mastery
Villain Profile:
Level 1: Channelgun
- (A) Empty
- (3) Empty
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- (43) Empty
Level 1: Crab Spider Armor Upgrade- (A) Empty
- (5) Empty
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Level 2: Wolf Spider Armor- (A) Empty
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Level 4: Longfang- (A) Empty
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Level 6: Combat Training: Defensive- (A) Empty
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Level 8: Combat Training: Offensive- (A) Empty
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Level 10: Super Jump- (A) Empty
Level 12: Combat Jumping- (A) Empty
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Level 14: Suppression- (A) Empty
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Level 16: Venom Grenade- (A) Empty
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Level 18: Frag Grenade- (A) Empty
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Level 20: Tactical Training: Maneuvers- (A) Empty
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Level 22: Heavy Burst- (A) Empty
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Level 24: Fortification- (A) Empty
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Level 26: Hasten- (A) Empty
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Level 28: Tactical Training: Leadership- (A) Empty
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Level 30: Mental Training- (A) Empty
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Level 32: Omega Maneuver- (A) Empty
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Level 35: Summon Spiderlings- (A) Empty
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Level 38: Aim- (A) Empty
Level 41: School of Sharks- (A) Empty
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Level 44: Arctic Breath- (A) Empty
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Level 47: Bile Spray- (A) Empty
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Level 49: Summon Guardian- (A) Empty
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------------Level 2: Swift
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Level 2: Health- (A) Empty
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Level 2: Hurdle- (A) Empty
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Level 2: Stamina- (A) Empty
Level 1: Brawl- (A) Empty
Level 1: ConditioningLevel 1: Sprint
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Level 2: Rest- (A) Empty
Level 4: Ninja Run------------
So what is a good build to use as an alternative? I have 2 respecs available to me and the 2nd build I can make. I'd love to go Bane if it weren't for the fact that I keep the legs because that's pretty much what stops me.