What's the strategy for playing Bian Que in the glory of the king?

Bian Que is a mage-assisted hero. His skills can heal his teammates, and he also has certain output ability. Here are some of Bian Que's strategies:

1. Bian Que's passive skill "Poison Seal" can do damage to the enemy and restore the health of himself and his teammates. Therefore, Bian Que needs to stack as many passive layers as possible to achieve maximum benefits.

2. Bian Que's skill "poison field" can cause range damage to the enemy and slow him down. This skill can be used to clean up soldiers in line battles and team battles.

3. Bian Que's skill "Poisonous Rain" can cause range damage and poison the enemy. This skill can be used to clear soldiers in line and team battles, and also to control enemy heroes in team battles.