Three variants of piercing curse, depending whether overpenetration is a problem or a bonus, and how big a hole you need.
Technically there are five different stunners, if you count the dark variants that require specific counter-curses and the comparatively easily shielded area variants. She'll only need the basic one today.
There are easily dozens of shields. There's variation in type of defense: spell-focused shields, physical shields, shields that require more magic and complexity but handle elemental "splash" and radiant heat. There's variation in size and shape, from hand-sized duelist shields to personal domes or whole walls. They vary in intensity, from thin shields meant to take a single spell and shatter, to bunker shields meant to personally fend off a siege spell or several. Hailey can cast maybe half of those, at most; she's missing the complex variants and the bunker variants, instead specializing in duelist shields, with a few personal domes and walls for special circumstances. The main thing she expects to need tonight is a projectile wall shield.
Most of those come as palings, as well: magic halfway between a spell and a ward, meant to hold up for minutes to days without active attention or channeling, depending on how much work you put in. The problem with palings, of course, is that that duration assumes the paling is left alone, rather than actively attacked, making them only really useful for types of magic other than shields. Most shield palings fall after one or two hits unless you put a bloody lot of work into them, and essentially no one could cast a paling that held against more than five solid hits. Personally-cast shields could be reinforced by the caster, and wards could draw on ambient magic and their reservoirs, but palings stand with only the structure the caster worked into them at the time.
Suffice to say no one bothers with shield palings except to give them a moment to wake up and draw their wand if they're camping. Far more useful to cast palings for detection, utility, or offense. Hailey knows a couple particularly violent ones for camping in enemy territory.
There are an awful bloody lot of more violent curses, everything from blasting and bone-breaking to flaying and entrail-expelling. Hailey knows most of those quite well, but doesn't expect to use them. There are quite a few elemental spells as well, lightning and fire and wind and so much more. Those feel especially familiar to her, but again are overkill for tonight.
Then there are the spells everyone else knows, for people who haven't trained to be a one woman war (or war crime), if Hailey's interpreting the bias in her knowledge of magic right. Things like summoning and banishing and floating, vanishing, basic transfiguration, cleaning, simple tool animation, modification of properties like weight or rigidity, multiplication, and so on. She knows all of those, especially all the household and cooking ones. Oddly mumsy of her.
This should be a simple job: deflect the bullets, stun the attackers, preserve some physical evidence so the local pigs can put the gits away proper, then leg it.