Reactions in Encounters

Your reactions let you respond immediately to what's happening around you. The GM determines whether you can use reactions before your first turn begins, depending on the situation in which the encounter happens. Once your first turn begins, you gain your actions and reaction. You gain 1 reaction per round. You can use a reaction on anyone's turn (including your own), but only when its trigger occurs. If you don't use your reaction, you lose it at the start of your next turn, though you typically then gain a reaction at the start of that turn.