Multiple Attack Penalty
Source Player Core pg. 253
If you use an action with the attack trait more than once on the same turn, your attacks after the first take a penalty called a multiple attack penalty. Your second attack takes a –5 penalty, and any subsequent attacks take a –10 penalty.
The multiple attack penalty doesn't apply to attacks you make when it isn't your turn (such as attacks made as part of a reaction). You can use a weapon with the agile trait to reduce your multiple attack penalty.
The multiple attack penalty doesn't apply to attacks you make when it isn't your turn (such as attacks made as part of a reaction). You can use a weapon with the agile trait to reduce your multiple attack penalty.