Guide · Top

Sion Guide

The Undead Juggernaut

Tank

Fighter

Tier C Top

Sion, The Undead Juggernaut, is a tank and fighter champion of medium difficulty. Across our 505 analysed ranked games, Sion is mostly played in Top (86% of its games), and more rarely in Mid (14%), with a 48.3% win rate in that role: tier C among Top champions (#41 of 48, ranked by win rate). Sion's damage is mostly physical (62%): armor is the best defensive answer against this champion. Win rate varies with game length: 50.0% in medium-length games (25 to 35 min, 252 games) versus 39.7% in long games (over 35 min).

Updated Oct 10 2026 · Patch 26.22

Average KDA

3.8 / 5.7 / 7.4

ratio 2.0

Damage / min

727

CS / min

7.3

Gold / min

403

Kill participation

36%

Vision / min

0.76

Averages measured over 435 Top games played with Sion, from our ranked Solo/Duo data collection.

How to play and combo preview

Written guide · based on the official ability texts

Sion is a tank who comes back to life after dying, with very fast attacks that heal him and deal damage based on the target's max health. Decimating Smash charges to knock up and stun, Soul Furnace gives a shield and max health on kills, and Unstoppable Onslaught charges while accelerating.

The stun

E AA AA

When: An enemy is within range.

A Decimating Smash charged long enough knocks up and stuns; Roar of the Slayer damages, slows and reduces armor.

The engage ultimate

When: An enemy is far away.

Unstoppable Onslaught charges while accelerating and you can slightly change your path; the impact knocks up based on the distance traveled.

See all 3 Sion combos: key order, when to cast them, cooldowns →

Laning phase

Decimating Smash: charge it long enough to knock up and stun. Soul Furnace gives you a shield; killing enemies passively raises your max health.

Common mistakes

Releasing Decimating Smash too early: it only knocks up after a long enough charge.
Casting the ultimate with no direction: it accelerates and does not stop.
Forgetting your passive: you come back temporarily to life.

Riot's official tips for playing Sion

You only have very slight turning ability during Unstoppable Onslaught, so make sure to use it in straight paths.
Roar of the Slayer is a great setup ability to land a very powerful Decimating Smash.
The Soul Furnace buff displays how much shield strength is remaining, use this information to time its explosion perfectly.

Build, runes and summoner spells

The most-played core build is Unending Despair, Hollow Radiance, and Jak'Sho, The Protean (24 games, 58.3% win rate).

24 games · 58.3%

Thornmail

17 games · 58.8%

Overlord's Bloodmail

Heartsteel

Titanic Hydra

14 games · 42.9%

Skill order

Max order : Q > W > E30.9% · 42 games

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
Q	●			●	●		●		●
W		●						●		●		●	●
E			●											●	●
R						●					●

The order shows which abilities reach rank 5 first; the grid shows the most-played level-up sequence with that order (measured over 54 games).

Starting items

Doran's Shield

Health Potion26.7% · 30 games

Laning phase (averages)

At 10 min: 3558 gold, 75 CS, 4919 XP. At 15 min: 5592 gold, 118 CS, 8474 XP.

Summoner spells

Flash + Teleport48.0% · 381 games

Flash + Ignite65.0% · 20 games

Ghost + Teleport47.4% · 19 games

Most-played runes

Grasp of the Undying + Inspiration

46.3% · 309 games

Primary tree · Resolve

Demolish65%

Conditioning47%

Overgrowth86%

Secondary tree · Inspiration

Approach Velocity71%

Cash Back60%

Shards

Attack speed86%

Adaptive force85%

Health scaling65%

Grasp of the Undying + Precision

56.1% · 41 games

Primary tree · Resolve

Demolish90%

Conditioning80%

Overgrowth85%

Secondary tree · Precision

Legend: Haste88%

Triumph88%

Shards

Attack speed90%

Adaptive force93%

Health scaling88%

Grasp of the Undying + Sorcery

67.9% · 28 games

Primary tree · Resolve

Shield Bash54%

Second Wind64%

Overgrowth68%

Secondary tree · Sorcery

Manaflow Band86%

Transcendence43%

Shards

Attack speed57%

Adaptive force64%

Health scaling50%

For each row, the most picked rune among the games played with this page (share of games in brackets).

Which items to build against the enemy team?

We sort every game by the enemy team's damage. These are Sion's completed items and their win rate in each situation; "▲" marks an item that does at least 3 points better than its usual win rate.

Mostly magic-damage enemy team51.2% · 123 games

At least 50% of their damage is magic

Unending Despair 56.8% ▲

Hollow Radiance 54.4% ▲

Heartsteel 50.0% ▲

Kaenic Rookern 57.7% ▲

Titanic Hydra 52.2%

Spirit Visage 50.0%

The item that stands out most is Kaenic Rookern: 57.7% win rate, +16 points versus its usual win rate.

Mostly physical-damage enemy team44.4% · 115 games

Less than 35% of their damage is magic

Unending Despair 49.1% ▼

Sunfire Aegis 42.1% ▼

Thornmail 42.9% ▼

Heartsteel 38.2% ▼

Titanic Hydra 57.7% ▲

Randuin's Omen 31.8%

The item that stands out most is Titanic Hydra: 57.7% win rate, +10 points versus its usual win rate.

Balanced enemy team48.7% · 197 games

Mixed physical and magic damage

Unending Despair 53.2%

Hollow Radiance 45.5%

Titanic Hydra 40.8% ▼

Sunfire Aegis 59.1% ▲

Thornmail 52.5% ▲

Jak'Sho, The Protean 51.3%

The item that stands out most is Sunfire Aegis: 59.1% win rate, +6 points versus its usual win rate.

Counters and matchups

Who counters Sion in Top

Jayce Sion: 23.5%17 games

Jayce has the edge in 76% of the 17 Top duels against Sion. See the Jayce guide.

Who Sion is strong against

Jayce23.5% · 17 games

How to play against Sion

Even if Sion still hits a Decimating Smash, making him release the charge earlier reduces its impact.
Use the time after Sion has died to reposition and prepare for his return.

Riot's official tips.

Win rates measured over direct same-role duels; only matchups with more than 15 games are listed. See all of Sion's matchups.

Sion Top: what our games say

Laning phase against the Top average

Measure	Sion	Top average	Gap
Gold at 10 min	3558	3580	−22
CS at 10 min	75	71	+4
XP at 10 min	4919	4754	+165
Gold at 15 min	5592	5655	−64
CS at 15 min	118	111	+6
XP at 15 min	8474	8297	+176

Measured over 54 Sion games with a timeline; the average covers 82 champions played Top in our ranked games.

Win rate by game length

short under 25 min48.8 %125 games

medium-length 25 to 35 min50.0 %252 games

long over 35 min39.7 %58 games

Best result: medium-length (25 to 35 min). Only groups of at least 30 games are shown. A gap of several points shows the phase where the champion is the most reliable.

Sion in another role

Role	Games	Win rate	CS/min	Gold/min	Most-built items
Mid	70	51.4 %	7.5	423

Roles where we have at least 40 Sion games.

Abilities

PassiveGlory in Death

After being killed, Sion will temporarily reanimate with rapidly decaying Health. His attacks become very rapid, heal him, and deal bonus damage based on his target's maximum Health.

QDecimating Smash

Sion charges a powerful swing in an area in front of himself that will deal damage to enemies when released. If he charges for enough time, enemies hit by the swing will also be knocked up and stunned.

WSoul Furnace

Sion shields himself and can reactivate after 3 seconds to deal Magic Damage to enemies nearby. When Sion kills enemies, he passively gains maximum Health.

ERoar of the Slayer

Sion fires a short range shockwave that damages and slows and reduces the Armor of the first enemy hit. If the shockwave hits a minion or monster, it will be knocked back, damaging, slowing, and reducing the Armor of all enemies that it passes through.

RUnstoppable Onslaught

Sion charges in a direction, ramping up speed over time. He can steer his charge slightly with the mouse cursor location. When he collides with an enemy he deals damage and knocks them up based on the distance he has charged.