1, design principle: The design principle of hunting belt is to increase the hunter's damage per second, especially in the face of enemies with high armor value, and make up for the lack of ordinary damage by burning. So in the game engine, the trigger effect of hunting belt has certain stability and probability.

2. Probability algorithm: The trigger effect of equipment in World of Warcraft is usually calculated by probability algorithm. For example, the burn trigger effect of hunting belt is 25%, which means that there is a 25% chance of causing additional burn damage to the target when attacking. This algorithm largely ensures the stability of hunting belt trigger effect.