>>503449234Sure. I can break try to break it down for you as best I can, simply.
As a caster, your class toolkit is comprised of Utility, Healing, Shapeshifting, and Damage spells. I'll list the ones that matter; reminder that this isn't exhaustive.
UTILITY
>Mark of the WildSmall benefit to armor, stats, and spell resistances with a long duration.
>InnervateMassively increased mana regen for a short period of time. Best used on Priests.
>Entangling RootsSingle-target root that breaks on damage. Cannot be used indoors.
>RebirthResurrection on a long cooldown that can be cast during combat.
HEALING
>Healing TouchSlow but efficient direct heal
>RejuvenationCheap heal-over-time that lets you heal small amounts while moving
DAMAGE
>WrathCheap, fast-casting nature damage
>MoonfireExpensive, instant cast arcane damage with small DoT component
>StarfireSlow and expensive arcane damage
SHAPESHIFTING (Keep in mind that all of these analogues are just plain worse than their parent class equivalencies and all of them scale poorly with gear due to not being able to benefit from weapon damage)
>Bear FormFunctionally similar to a warrior with a shield (that can't block) with Taunt, Heroic Strike, Thunderclap (without the debuff), and Concussion Blow (with shorter duration). Has its own action bar. High armor.
>Cat FormFunctionally similar to a rogue with Sinister Strike, Ambush, Backstab, Rupture, Stealth, Sprint, Eviscerate, and Cheap Shot (with much shorter duration with a weak bleed DoT). Has its own action bar.
>Aquatic FormBreathes underwater and is extremely fast compared to other classes. Excellent for escaping, especially versus non-Shamans or non-Druids, and the few NPCs that cannot swim.
>Travel Form40% speed pseudo-mount that is instant cast, and can actually outpace level 40 mounts for approximately 26 seconds. Cannot be used indoors.
>Moonkin FormMassively increases your armor while letting you use damage spells. 3% spellcrit to party.