Certain special abilities, spells, and situations allow you to take a special action called a Reaction. A Reaction is an instant response to a trigger of some kind, which can occur on your turn or on someone else’s. The Opportunity Attack, described later in “Playing the Game,” is the most common type of Reaction. When you take a Reaction, you can’t take another one until the start of your next turn. If the reaction interrupts another creature’s turn, that creature can continue its turn right after the Reaction. In terms of timing, a Reaction takes place immediately after its trigger unless the Reaction’s description says otherwise.