Something of uncommon rarity requires special training or comes from a particular culture or part of the world. Some character choices give access to uncommon options, and the GM can choose to allow access for anyone. Less is known about uncommon creatures than common creatures. They typically can't be summoned. The DC of [Recall Knowledge](/Actions.aspx?ID=26) checks related to these creature is increased by 2.
Focus
A spell you can cast by spending a Focus Point, and that is automatically heightened to half your level rounded up.
Wizard
This indicates abilities from the wizard class.
source: Player Core pg. 387
spell_type: Focus
trigger: An effect would deal acid, cold, electricity, or fire damage to you
type: Spell
You’re used to mitigating the damage done by bombs, siege engines, and magical artillery. You gain resistance 15 to your choice of acid, cold, electricity, or fire damage from the triggering effect. The resistance applies only to the triggering effect’s initial damage.