The Ultimate Nasus Top Guide (Latest Patch) - Stack, Whack, and Lead the Pack!
With this ultimate Nasus top guide (latest patch), watch your foes crumble with every Q-stack you've gathered!
Nasus Top Runes:

Primary Tree (Precision):
Lethal Tempo: Boosts your attack speed after damaging an enemy champion, allowing for faster Q stacking.
Triumph: Provides healing and bonus gold on takedowns.
Legend: Tenacity: Grants tenacity based on champion takedowns.
Last Stand: Increases damage as your HP gets lower.
Secondary Tree (Resolve):
Second Wind: Provides healing after taking damage from an enemy champion.
Overgrowth: Grants bonus health for minions and monsters that die near you.
Stat Shards:
Ability Haste
Resistance (based on matchup)
Scaling HP or double resistance based on the matchup.
Nasus - Summoner Spells:
Ghost: Provides mobility to chase down enemies or escape.
Flash: Essential for repositioning, engaging, or escaping.
Nasus Full Items Guide:
Starting Items:

Doran's Shield + Health Potion: For general sustain in lane.
Cloth Armor + 4 Health Potions: Against AD champions.
Null-Magic Mantle + 1 Health Potion: Against pure AP champions.
Nasus Main Build (5 items):

Divine Sunderer: Essential for its Sheen effect and sustain.
Gargoyle Stoneplate: Provides tankiness in teamfights.
Anathema's Chains: Reduces damage from a specific enemy champion.
Sterak's Gage: Grants a shield and bonus damage based on health.
Ionian Boots of Lucidity: Provides ability haste and summoner spell haste.
Last Item depending on enemies:

Fimbulwinter
Force of Nature
Randuin's Omen
Serylda's Grudge
Frozen Heart
Thornmail
Spirit Visage
Nasus - Ability Skill Order:

Q - Siphoning Strike: Your main stacking tool. Max this first.
W - Wither: A potent slow to control enemy champions. Max this second.
E - Spirit Fire: An AoE ability that reduces armor. Max this third.
R - Fury of the Sands: Your ultimate, providing bonus health, damage, and Q cooldown reduction. Upgrade whenever available.
Nasus - General Playstyle:
Laning Phase:
Play safe and focus on stacking your Q.
Use your E to farm from a distance if under heavy pressure.
Avoid unnecessary trades and watch out for enemy jungler ganks.
Use Wither defensively or to set up ganks.
Mid Game:
Continue to stack your Q and split-push when possible.
Join teamfights where your presence can make a difference.
Use your ultimate wisely, either to turn fights or to survive.
Late Game:
You should be a powerhouse now. Engage in teamfights and be a frontline for your team.
Keep an eye on objectives like Baron and Elder Dragon.
Teamfighting as Nasus:
Engage with your ultimate and focus on high-priority targets.
Use Wither on the enemy ADC or other key damage dealers.
Peel for your ADC if they're under threat.
Dragon and Nashor Fights as Nasus:
Dragon: Provide vision and be ready to contest or secure it.
Baron: A key objective. Use your strength to zone enemies or secure the Baron.
Nasus - Matchups:
Good Matchups: Tanks and champions that scale well but are weak early on (e.g., Kayle, Vladimir).
Bad Matchups: Champions that can heavily harass or bully you early (e.g., Darius, Olaf, Teemo).
Nasus requires patience and good decision-making. Focus on stacking, understand your power spikes, and choose your battles wisely. With time and practice, you'll become the late-game monster Nasus is known to be.
This was Nasus’s ultimate top guide for patch.