Yes, you just have +5 vs reflex.
Unless you took an expertise feat (such as Totem ExpertiseDDI) to gain a feat bonus to attack rolls, then the only bonus you're likely to have at level 1 is your wisdom bonus.
The modifier for those attacks is calculated as follows:
- +wisdom modifier (-1 to +10)
- +half your level, rounded down (+0 to +15)
- +implement enhancement bonus (+0 for a non-magical implement, otherwise +1 to +6)
- +feat bonus (+0 if you don't have a feat for it, otherwise +1 to +3)
- +superior implement bonus (+1 if you have an appropriate superior implement and the feat for it)
- +/- any situational modifiers
Note that all druid beast form powers have the implement keyword, and that (as Joshua Aslan Smith pointed out in his answer) you retain the use of implements you were wielding when you entered beast form. This means you gain your implement's enhancement bonus to attack rolls. Also, implement attacks never get a proficiency bonus, so proficiency with claws is a non-issue.
At first level +5 is a perfectly good attack bonus; most enemies are going to have a reflex of 12 or less, so you'll be hitting on a roll of 7+ on a d20.
You cannot use attack powers from other classes while in beast form.
From PHB2, p84 (as updated by official errata):
Wild Shape
... While you are in beast form, you can’t use weapon or implement attack powers that lack the beast form keyword, although you can sustain such powers. ...
No paladin powers (or powers from any other non-druid class, for that matter) have the beast form keyword, therefore they can't be used while you're in beast form.
...unless...
The exception is if you take the Werebear, Wererat, or Werewolf themes (all from Dragon 410). They all get an encounter version of the wild shape power, and at level 10 that power changes so that it allows the use of powers both with and without the beast form keyword.
Werewolf Level 10 Feature (10th level): When you use the wolf shape power, you can assume the form of a humanoid-wolf hybrid, instead of a wolf. While in hybrid form, your equipment does not become part of your new form, and you are not forced to drop any items you are holding. You are also not limited to using implement and weapon attack powers that have the beast form keyword.
...or...
If you are a half-elf and have chosen an implement power for your Dilettante racial trait, you can take the Wild Dilettante feat (from Dragon 385 and updated by official errata). However, this only affects the Dilettante power and would not apply to other powers you happen to have.
Wild Dilettante
Prerequisite: Half-elf, druid, you must have chosen an implement power for your Dilettante racial trait
Benefit: You can choose to treat the power you selected for your Dilettante racial trait as though it has the beast form keyword.
Best Answer
The barbarian's rage works, and can be a powerful combination. The monk's martial arts is controversial, depending on whether your DM counts the animal attacks to be "unarmed strikes" or not. For both of those classes, you'll also need to work out with your DM how Armor Class calculates out.
Rogue Sneak Attack will rarely work, if ever, as animal attacks are not finesse weapons. If you choose an animal form that bases its attacks on dexterity, a generous DM might call that a "finesse" attack and let it work, but that's not RAW.
Also note that to multiclass, you must have a 13 in the primary stat of both classes, which you do not have there. To multiclass druid with barbarian will require a 13 Wis and a 13 Str; for monk or rogue, you'll need 13 Wis and 13 Dx. If the numbers you show are before racial bonuses, then you can make it work. Otherwise, you may have to wait until 4th level in your starting class, to get an ASI and raise your stats enough to change to the other class.