The magic system in Pathfinder: Wrath of the Righteous is so elaborate that choosing the best spells for your character can be a daunting task. To help you with this, here I've listed some spells you cannot go wrong with.
Top 10 Best Spells in Pathfinder Wrath of the Righteous
There are so many great spells in the game that creating a Top 10 list would always leave some good ones out. Still (and in no particular order), here are the ones that are compatible with most builds or work well when synergized with each other.
Mage Armor
There is never a good reason to not pick Mage Armor. It increases your base AC by 4 (a must for spellcasters who cannot wear armour), lasts for one hour, and can be cast on pets to give them extra protection. Just remember that it doesn't stack with any other item or effect that also increases your base armour.
Ill Omen
You afflict the target with bad luck and force them to reroll the next d20 and take the less favorable result. For every five caster levels you have, the target must roll twice on an additional d20 roll (to a maximum of five rolls at 20th level).
This first level spell was introduced in the 2.2.0 patch, and although it may not seem that great at first, it works like a charm when Quickened with Metamagic. Now you can cast Ill Omen followed by a stronger spell like Slumber or Phantasmal Killer, and make sure the enemy fails their save.
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Hideous Laughter
This enchantment spell triggers a Will save on each round, and as long as the target keeps failing the save, they will remain prone and unable to take any actions. For a second level spell, this is as good as it gets when it comes to crowd control.
Forget about codes, hit them
Haste
It is a really powerful utility spell that increases the target speed by 30 ft and grants them an extra attack. On top of that, it gives the target +1 to Attack Bonus, +1 Reflex saves, and +1 AC. Cast it on your Barbarian in the early rounds of combat to maximize your damage.
Screech
You emit a shriek that makes enemies drop their guard. Those who fail a Fortitude save, provoke attacks of opportunity from any foes that threaten them. The secret of this spell is to use it when you have one or more party members with the feat Combat Reflexes since that allows them to make more than one attack of opportunity.
Phantasmal Killer
You create a phantasmal illusion in the shape of your target's worst fears. If they fail a will save, they believe the image to be true and have to make a Fortitude save. Should they fail that one, they immediately die of horror, and even if they succeed, they still take 3d6 points of damage. I use this in combination with a Quickened Ill Omen and hardly ever fails.
Weird
This ninth level spell is like a Phantasmal Killer with an area of effect. Any enemy in the area who fails both saves dies instantly, and if the succeed the save they take 3d6 points of damage, 1d4 Strength damage, and become stunned for one round.
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Greater Dispel Magic
This utility spell is great for debuffing bosses or a strong enemy that has several magic defenses. In its single target version it allows you to eliminate one magical effect affecting the target per 4 casters levels you have. With a bit of luck, you can turn a big bad boss into another squishy mob.
Hellfire Ray
It can fire up to three rays, depending on caster level, and being a ranged attack, it works with sneak attack. It deals 1d6 damage per caster level, but half of the damage is type fire and half is unholy, which can't be reduced by fire resistance. To maximize its damage, I combined it with the Mythic Ability Ascendant Element (Fire), which ignores any fire resistant the enemy may have.
Meteor Swarm
When you cast this 9th level spell you call a rain of meteors that explode in a 40ft radius and deal 8d6 bludgeoning damage and 26d6 fire damage to any creature in the area. A successful Reflex save halves the damage, but Meteor Swarm ignores spell resistance. This classic spell has only been introduced to Wrath of the Righteous on the latest patch 2.2.0, and its version is slightly more overpowered than its tabletop counterpart.
For more on Pathfinder: Wrath of the Righteous, check out How to start the Kellid ritual in Pathfinder Lord of Nothing here on Pro Game Guides