When facing a champion like Nasus who relies heavily on sustain and scaling, it is important to pick a champion who can apply constant pressure in the early game to prevent him from getting to his late-game powerhouse status. Champions like Cho'Gath and Darius are excellent choices for this task. Cho'Gath can poke Nasus from a distance with his ruptures and silence, while Darius can out-trade Nasus in short engagements with his passive bleed and powerful ultimate.

Respect Nasus's Sustain

One of Nasus's biggest strengths is his sustain from his passive lifesteal and his Q ability, Siphoning Strike. It is important to respect his sustain and avoid extended trades with him unless you have a significant advantage. Instead, look for short, impactful trades where you can burst him down before he can heal back up.

Utilize Crowd Control Effectively

Nasus is a champion that heavily relies on being able to stick to his targets to deal damage and stack his Siphoning Strike. Champions with crowd control abilities can disrupt Nasus's ability to stick to his targets and kite him effectively. Be sure to time your crowd control abilities well to prevent Nasus from freely auto-attacking and stacking his Q on minions.

Zone Nasus from Minion Waves

Denying Nasus farm is crucial to preventing him from hitting his late-game power spikes. By zoning Nasus from minion waves and denying him gold and experience, you can delay his scaling and make it more difficult for him to become a late-game monster. Use your pressure advantage to position aggressively and force Nasus to choose between farming safely or engaging in risky trades.

Roam and Help Your Team

While it's important to keep Nasus in check in the top lane, don't be afraid to roam and help your team when the opportunity arises. Nasus is a champion that needs time to scale, so applying pressure on other parts of the map can prevent him from reaching his late-game power spike. Coordinate with your team to secure objectives and create opportunities for picks to snowball the game in your favor.

Build Executioner's Calling

In order to counter Nasus's strong sustain, consider building an Executioner's Calling to apply Grievous Wounds to him. This will reduce the effectiveness of his lifesteal and make it easier for you to trade with him effectively. The healing reduction provided by Grievous Wounds can be crucial in shutting down Nasus's sustain and securing kills on him in the laning phase.

Conclusion

By understanding Cho'Gath and Darius as strong picks against Nasus, respecting Nasus's sustain, utilizing crowd control effectively, zoning Nasus from minion waves, roaming and helping your team, building Executioner's Calling, you can effectively counter Nasus in the top lane and prevent him from becoming a late-game threat. With these tips and strategies in mind, you'll be better equipped to handle the matchup and come out ahead in your duels against the Curator of the Sands.