Best Sion Counters Top: Winning the Lane Against the Undead

Sion remains one of the most persistent threats in the top lane due to his infinite scaling, oppressive wave clear, and split-push potential. Whether he is building full tank to become an unkillable frontline or opting for a lethality build to one-shot backliners, understanding the specific mechanics required to shut him down is essential for any top laner. To effectively counter Sion, players must focus on champions that can either interrupt his primary damage source, out-scale his health stacking, or punish his lack of mobility during the early game.

Why Sion is a Problem in the Current Meta

Sion’s strength lies in his W (Soul Furnace) passive, which grants him permanent maximum health whenever he kills a unit. By the mid-to-late game, a well-farmed Sion can easily possess 4,000 to 5,000 HP without even finishing his full build. Combined with the high base damage of his Q (Decimating Smash) and the utility of his R (Unstoppable Onslaught), he creates immense pressure on the map.

Furthermore, the "strategic dying" aspect of his kit—using his passive to clear waves or secure kills even after falling—makes him difficult to truly put behind. Even if he is 0/5, his ability to destroy towers with Hullbreaker or similar items remains a constant headache. To stop him, you need more than just a win in lane; you need a strategic counter that neutralizes his identity.

The Top S-Tier Sion Counters

1. Riven: The Mobility Queen

Statistically, Riven is one of the most reliable counters to Sion. The matchup is heavily favored for Riven because her entire kit is designed to negate Sion's Q.

Interrupting Decimating Smash: Riven can use her W (Ki Burst) or the third cast of her Q (Broken Wings) to knock Sion out of his Q charge. Since most of Sion's damage and wave clear are tied to a fully charged Q, Riven effectively removes his primary weapon.
Dodging and Shrugging Off Damage: With her E (Valor), Riven can dash out of the Decimating Smash area or shield through the explosion of Sion's W.
Snowballing: Sion is vulnerable early on. Riven’s high burst at levels 3 and 6 allows her to secure kills and build a gold lead that Sion cannot recover from easily. In a long lane, Riven can chase Sion down with her superior mobility before he can reach the safety of his turret.

2. Gwen: The Tank Shredder

Gwen is the premier AP counter to Sion. As a champion that thrives against high-health targets, she finds Sion to be an ideal opponent.

Max HP True Damage: Gwen’s passive (Thousand Cuts) deals magic damage based on the target's maximum health. When she uses her Q (Snip Snip!) in the center, she deals true damage based on that same health pool. Since Sion’s only defense is stacking massive amounts of HP, Gwen’s damage remains relevant throughout the entire game.
W (Hallowed Mist) Utility: While Sion is mostly a melee champion, his E (Roar of the Slayer) and R can be mitigated if Gwen positions her Mist correctly, preventing Sion from slowing her from a distance.
Scaling: In a 1v1 split-push scenario, Sion can almost never match a Gwen after she completes two items. She can shred through his HP bars faster than he can generate shields.

3. Kled: The Lane Bully

Kled excels at punishing Sion’s slow animations and weak early game.

Grevious Wounds and Stickiness: Kled’s Q (Bear Trap on a Rope) provides a built-in healing reduction, which is useful if Sion is running sustain runes. More importantly, Kled’s E (Jousting) allows him to dash through Sion, making it incredibly easy to stay behind him or move out of the Q hitbox.
Dismounting Advantage: Even if Sion manages to land a heavy blow, Kled’s dismount mechanic gives him a second chance. Sion has long cooldowns after his initial burst, giving a dismounted Kled the opportunity to quickly remount by auto-attacking the slow-moving Sion.
Ult for Ult: If Sion tries to use his R to escape or roam, Kled can match the map pressure with his own R (Chaaaaaaaarge!!!), ensuring that Sion never truly gets a free roam.

4. Fiora: The Grand Duelist

Fiora is perhaps the most frustrating matchup for a Sion player. She turns Sion’s greatest strength—his predictable CC—into his greatest weakness.

Riposte (W) is Key: A skilled Fiora will wait for Sion to nearly finish charging his Q or wait for the impact of his R. By using Riposte at the right moment, she doesn't just block the damage; she stuns Sion, leading to a guaranteed vital proc and a massive trade win.
Percent Health True Damage: Similar to Gwen, Fiora’s vitals deal percent max health true damage. No amount of armor or health can save Sion from a late-game Fiora.
Mobility: Her Q (Lunge) allows her to constantly reposition, making it nearly impossible for Sion to land the center of his E or a full Q.

Strategic Gameplay: How to Play the Lane

Selecting a counter is only the first step. To consistently win against Sion, you must adapt your laning phase to his specific rhythms.

The Early Game (Levels 1-5)

Sion is surprisingly strong at level 1 if he can hide in a bush and charge a full Q. Always scout the side bushes before the minions arrive. Do not let him cheese you.

Focus on the following:

Horizontal Movement: When Sion charges his Q, do not walk backward. The hitbox is a long rectangle. Walk to the side (left or right) to exit the area faster.
Abuse Cooldowns: Sion’s Q has a significant cooldown if he fully charges it. Once he misses or is interrupted, you have a window of 6 to 10 seconds where he has almost no kill pressure. This is when you must engage in an extended trade.
The Shield (W) Management: Sion’s shield takes a few seconds before it can be detonated for damage. If you can break the shield with your damage before he detonates it, he loses both the protection and the burst. Champions with quick burst combos are excellent for this.

Handling the Ultimate (Post-6)

When Sion reaches level 6, he gains a powerful escape and engage tool.

Missing In Action: If Sion disappears from lane, ping your mid-laner and bot-laner immediately. His R allows him to cover vast distances quickly.
Body Blocking: If you are playing a tank counter like Ornn or Poppy, you can sometimes intentionally take the hit of his R if you are near your turret to prevent him from escaping, but only do this if you are healthy enough to survive the follow-up.
Interruption: Remember that Sion's R is unstoppable, but it ends upon hitting a champion or terrain. If you can force him to hit a wall through clever positioning, his engage fails.

Dealing with the Passive (Glory in Death)

This is where many players throw away their lead. They kill Sion, then stand over his body to BM or recall immediately.

Kite the Zombie: Sion’s passive grants him massive attack speed and life steal. Do not try to 1v1 the zombie unless you have hard CC or can easily outrun him.
Save a Dash: Always keep a movement ability ready for the moment Sion dies. He will almost always use the active speed boost in his passive form to close the gap.

Itemization Strategy to Counter Sion

Your item build should reflect the version of Sion you are facing.

Against Tank Sion:

Blade of the Ruined King (BotRK): This is the gold standard for AD bruisers. The current health damage punishes Sion for every point of HP he gains from his W.
Liandry’s Torment: For AP champions, the burn effect based on max health is essential for cutting through his massive health bar.
Lord Dominik’s Regards: If you are playing a marksman or a high-AD assassin, the armor penetration and the "Giant Slayer" passive (if applicable in the current patch) are vital.
Black Cleaver: Excellent for bruisers to shred his armor for the entire team.

Against Lethality Sion:

Guardian Angel: Lethality Sion relies on catching you off guard and one-shotting you. Having a second life negates his entire win condition.
Zhonya’s Hourglass: Timing the stasis to avoid his Q or R damage will leave him vulnerable and without cooldowns.
Armor Boots (Plated Steelcaps): Since much of his lethality damage comes from his auto-attacks in passive and his Q, the damage reduction from Steelcaps is highly efficient.

The "Inting Sion" / Split-Push Counter

Sometimes, a Sion player will stop trying to win lane and focus entirely on towers. This is the "Bausffs" style of play.

Match the Wave Clear: You cannot leave Sion alone for 30 seconds, or he will take two towers. You must pick a champion that can clear waves as fast as he can.
Proxying Counter: If Sion starts proxying (farming behind your tower), do not chase him unless your jungler is nearby. Focus on getting your own farm. If you lose CS to chase a Sion who wants to die anyway, he is winning.
Tiamat Items: Building Ravenous or Titanic Hydra allows you to keep the wave pushed out, preventing him from ever getting the "demolish" proc on your tower.

Conclusion

Sion is a formidable opponent, but he is far from invincible. His kit relies on telegraphed abilities and predictable scaling. By picking high-mobility duelists like Riven and Fiora, or max-health shredders like Gwen, you turn his massive HP pool into a liability. Success in this matchup requires patience, horizontal dodging, and the discipline to manage his passive state. As long as you respect his Q charge and prevent his free-scaling, the Undead Juggernaut will find himself more dead than alive in your lane.