Tip overview

If you can see and kill Ying, Prioritize her over her Illusions. Killing Ying makes her Illusions despawn and prevents her from Healing/Shattering. If you can't see Ying and have no/low cauterize killing Illusions might stop healing from her.

Ying is limited to 2 stationary Illusions. If Ying wants to push up she needs to sacrifice illusions to make new ones to heal or her team will need to fall back for healing. Killing her or her Illusions gives no healing for the enemies to retreat to.

Ying's Ultimate ability, Illusory Rift, heals but can let her use her Dimensional Link to teleport to her team. If Ying uses this right after respawning, look out for her teleporting to her team and kill her to waste the Ultimate.

Champions who can do "headshots", can do headshots to Ying illusions. So aim to the head, to kill them faster.

Kill her illusions first so that she can not heal/do dmg/block dmg with it