To make sure the task is completed correctly, please check the following:
- Use only Legendary weapons.
- Don’t equip any pets.
- Don’t use armor that deals damage.
- Don’t equip any weapon or armor sets that cause additional damage.
- Don't use weapons with the Damage reflection and Killed target explodes attributes.
- Don’t use any gadgets.
- Don’t use any module combinations.
- At the end of each battle, press Next Match instead of leaving.
Following these rules should let your wins count toward the task.