Druid / Barbarian Cross Class.

[Agonous]

I am currently playing a Shark Druid, with a focus on combat, with a bite attack and spells. She is currently level 7.

I plan on cross classing into Barbarian, as a thematic choice that will hopefully boost their combat abilities.

the plan at this point is to go Druid 16-17, and Barbarian 3-4, in terms of levels.

Does anyone have any suggestions, in terms feats/spells/rage powers/equipment/when to take the Barbarian levels to give her the best shot at being the best raging shark she can be.

[Scott Wilhelm]

Get a Helm of the Mammoth Lord and get a Gore Attack. Dip a level in White Haired Witch, and get a Hair Attack, and Take the Lesser Beast Totem Rage Power and get 2 Claw Attacks. I'm not sure if your GM will let your fins serve as a platform for Claw Attacks. If not, then take Lesser Beast Totem for your Gore Attack instead of the HOTML.

If you take levels in Warpriest, you can increase your Base Damage, and that will stack with your Size. If you take Shaping Focus, up to 4 nondruid levels count as Druid levels with respect to Wildshape.

Lesser Restoration removes Fatigue.

Take a look at Giant Octopus instead of shark: 9 Attacks 8 Tentacles and a Bite, Grab, and Constrict always seemed pretty tasty.

Lesser Restoration removes Fatigue.

Dreadnaught Barbarians don't get Fatigued from Raging, but they only get a +2 St instead of the usual +4, and they can't Charge.

[Agonous]

trying to stick with the shark theme, this build is more for the flavor than getting a ridiculous amount of attacks.

I forgot about Lesser restorations fatigue removal, that will be useful.

[Scott Wilhelm]

If you took levels in Warpriest, you could substitute Sacred Weapon Damage for your Bite instead of the regular Damage. A Great White Shark normally does 2d8 Base Damage. A level 1 Size Huge Warpriest does 2d6, and a level 5 Size Huge Warpriest does 3d6, and that gets better with increased levels.

Another Class that gets the Warpriest Sacred Weapon Ability is Fighter, which offers it as an Advanced Weapon Training option, so can be taken as a Feat as early as Level 5.

The Strong Jaw Spell give you a 2-slot Vitrual Size Increase, so your Great White Shark Bite will do 4d8 instead of 2d8. or 1d8 becomes 6d6 by Level 5 Warpriest.

Since you intend on focusing on a single weapon, you might consider Vital Strike Feats and Great Cleave. Since you can't Charge and use Vital Strike, you might consider Dreadnaught so you don't get Fatigued.

Charging might be your thing, though, so maybe Merciless Rush, Greater Bull Rush, maybe some Overrun Feats.

I have been intrigued by the Amplified Rage Teamwork Feat, but I'm not sure if it would be worth it for you to do what it takes to use it.

[Ryan Freire]

Beastkin Berserker will let you keep up the wildshape

[JiaYou]

Will your GM just let you do Variant Multiclassing? You'll give up your level 3 and level 7 feats to gain 7+con mod rounds of rage (and uncanny dodge but whatever).

Just need Natural Spell really to make this an effective option.

[Darigaaz the Igniter]

Shaping focus is definitely a feat you want to look at.

[Scott Wilhelm]

Ryan Freire wrote:

Beastkin Berserker will let you keep up the wildshape

Beastkin Berserker is pretty cool, but I'm not sure it will stack with Druid Wildshape.

Meanwhile, the OP only needs 1 more level in Druid to gain the ability to Wildshape into Huge Animals (he probably has a Great White Shark in mind), or he could take the Shaping Focus Feat.

He's a level 7 Druid now, so he can just cast the Strong Jaw Spell, and Level 8 will give him 1 more level 4 spell/day.

I think his next level should be another level in Druid to get that Huge Animal Wildshape and +1 level 4 spell/day. Then he should think about whether he wants to be a casty Druid or a Fighty Druid--a Druidzilla. If the former, then he shouldn't multiclass at all, but just keep gaining levels in Druid and keep casting better Spells. I think he wants to be a Druidzilla, though.

If he does want to be a Druidzilla, I don't think Barbarian is really what he should be going for. I think he should be taking levels in Fighter. Agonous wants to focus on being a big, scary shark with a big, scary Bite. And you only ever get 1 Bite Attack/round regardless of your BAB. So that tells me should be taking Vital Strike Feats. He has his 2d8 as a Great White Shark. He has Strong Jaw to make it 4d8.

Level 8: Druid8, huge animals, another level 4 spell, BAB+6
9D8Fighter1: Vital Strike, Power Attack, BAB+7

Power Attack is for Great Cleave, but used on it's own, Power Attack will give him -2 on the attack and I think +6 Damage, but I don't know for sure that your sole Bite Attack counts as a 2 handed weapon. If it doesn't, then it's just a +4.

Vital Strike makes his Bite Attack do a respectable 4d8 Base Damage full time, 8d8 if he buffs himself with Strong Jaw.

A level in Barbarian gives him +2 Attack and Damage when Raging. A level in Fighter gives him +18 Damage (+4d8) when he buffs himself with Strong Jaw!

10D8F2: Bravery +1, Cleave or Furious Focus, BAB+8

A classic choice: Cleave lets the OP attack 2 opponents instead of 1. Furious Focus lets him use Power Attack with no penalty. Power Attack at this point grants +6 Damage at least with a -3 on the Attack Roll.

11D8F3: Armor Training +1 (not sure how the Shark uses that, but there it is), Devastating Strike, Cleave, or Great Cleave, BAB+9

Devastating Strike will give his single attack with Vital Strike +6 Damage. Great Cleave lets the Druidzilla attack multiple opponents.

Improved Vital Strike becomes available with 2 more levels in Fighter, increasing his base Damage to 12d8. Greater Vital Strike becomes available after 5 more levels in Fighter, increasing his Base Damage to 24d8.

After 5 levels in Fighter--Druid8/Fighter5--he can take an Advanced Weapon Training as a Feat. Focused weapon lets him inflict damage with his Bite as if he were a level 5 Warpriest. Size Medium level 5 Warpriests inflict 1d8 with their Sacred Weapons, but Huge Great White Shark level 5 Warpriests inflict 3d6, and when under the influence of Strong Jaw, that makes it 6d6. 4d8 gives an average of 18 points of Damage/hit. 6d6 gives an average of 21. Improved Vital Strike turns 4d8 into 12d8, but it turns 6d6 into 18d6: 54 vs 63.

I think I have refined my advice for the OP.