What is nasus mains?

As an AI language model, especially in language processing, I don't have personal opinions, emotions and preferences. However, I can provide you some information about Nasus mains, which are players who specialize in playing the champion Nasus in the popular online game League of Legends:

• Nasus is a champion in League of Legends, and is known for his ability to scale up his damage with his Q ability, Siphoning Strike.
• Nasus mains focus on farming effectively during the early game to build up their Siphoning Strike stacks, which increases the damage of their Q ability.
• Nasus mains use their tankiness and powerful Q ability to tank damage and deal high amounts of damage to enemy champions during the late game.
• Nasus mains also need to prioritize building items that increase their tankiness and survivability, such as items that provide health and armor.
• Nasus mains need to be strategic in their use of their W ability, Wither, which slows down enemy champions for a short period of time. It is important to use Wither at the right time to either secure a kill or escape from a dangerous situation.