Feat: Steady Spellcasting
Confident in your technique, you don't lose spells easily. If a reaction would disrupt your spellcasting action, attempt a DC 15 Flat. If you succeed, your action isn't disrupted.
Pathfinder 2e Database
Confident in your technique, you don't lose spells easily. If a reaction would disrupt your spellcasting action, attempt a DC 15 Flat. If you succeed, your action isn't disrupted.