Summoners War Siege Battle: Top Light & Dark Units Tier List 2026

Success in Summoners War Siege Battle is defined by roster depth and the strategic deployment of your rarest assets. As the 2026 meta shifts toward increasingly complex defensive synergies, Light and Dark (L&D) units have become the essential backbone for high-level guilds. Because these units often possess unique mechanics—such as passive stripping, damage redistribution, or turn-cycling—they force opponents to expend their most valuable rune sets and counter-picks just to secure a single win.

This guide provides an authoritative breakdown of the most impactful L&D units for the current Siege meta, helping you prioritize your growth and tactical focus.

S-Tier Light and Dark 5-Star Units

In the current Siege meta, L&D 5-star units serve as "win conditions." When placed on defense, they create oppressive scenarios that require specific, high-efficiency counters. When used on offense, they provide the reliability needed to dismantle complex defensive compositions.

• Valantis (Light Demon): Valantis remains the gold standard for defensive utility. His passive ability to strip and control enemy buffs upon being hit, combined with his skill set, makes him a nightmare for speed-cleave teams. He forces attackers to rely on high-Resistance builds or non-buff-reliant strategies, limiting their flexibility.
• Asima (Light Hell Lady): Asima is the premier offensive powerhouse for clearing tanky, sustained defenses. Her ability to apply a laundry list of debuffs, including continuous damage, allows her to bypass high-Defense units that would otherwise wall your team. Pair her with an attack-bar booster to ensure she moves before the enemy can recover.
• Maximilian (Dark Lightning Emperor): Maximilian excels in high-speed offensive compositions. His ability to cycle turns and provide consistent, high-damage output makes him one of the few units capable of carrying a 3v3 match against elite defenders. He is best utilized in teams that prioritize speed and control over pure survivability.

Top-Tier 4-Star Units for Competitive Depth

Siege Battle is a marathon, not a sprint. While 5-star monsters define the meta, your guild's success hinges on your ability to clear towers repeatedly without depleting your strongest units. These 4-star units provide elite-level utility that remains relevant even in the highest ranks.

• Julianne (Light Vampire): Julianne is an elite defensive anchor. His passive, which prevents him from dying in a single hit and provides massive sustain, makes him incredibly frustrating to face. He serves as a perfect core for "Bruiser" defenses that aim to outlast the opponent.
• Betta (Dark Mermaid): Betta remains the queen of 4-star support. Her kit—which includes cleanse, immunity, and a revive—is the ultimate insurance policy. She is essential for stabilizing offensive teams that are forced to engage with high-damage defensive towers.
• Hwadam (Light Taoist): Hwadam is the ultimate counter to cleave strategies. By redistributing his own HP to keep teammates alive, he prevents the "instant loss" scenarios that occur when an enemy team targets your squishiest unit. He is a primary target for any player looking to create a "wall" defense.

Strategic Categorization: Offense vs. Defense

To master Siege Battle, you must understand the "intent" behind your team compositions.

Defensive Anchors

These units are built to stall. Their primary goal is to force the attacker to exhaust premium runes or fail their attack entirely.

• Focus Stats: High HP, High Defense, High Resistance.
• Goal: Survive the opponent's initial burst and win through attrition.

Offensive Specialists

These units are built to exploit gaps. They are designed to identify a specific weakness in an enemy team and apply overwhelming force or control to finish the match quickly.

• Focus Stats: Speed, Accuracy, Crit Damage.
• Goal: Secure a victory quickly to minimize the risk of RNG-related losses.

Managing Rune Budget and Trade-offs

The biggest mistake mid-game players make is spreading their best runes across too many units. In Summoners War, a unit with a high-tier kit but mediocre runes is often less effective than a standard unit with top-tier, high-efficiency runes.

• The 80/20 Rule: Dedicate 80% of your best Violent and Swift sets to your top 10-15 most used Siege units. Having a few "perfect" teams is far superior to having twenty "average" teams that lose consistently.
• Rune Efficiency: Prioritize sub-stats that cover your unit’s weaknesses. For example, if you are using Hwadam on defense, ensure he has enough Resistance to avoid being defense-broken and stripped before he can trigger his passive.

Progression Priorities for Siege Success

If you want to climb the ranks, follow this progression roadmap:

1. Audit Your Roster: Create a spreadsheet or use an in-game favorite system to categorize your L&D units into "Offense" and "Defense" roles.
2. Synergy Over Raw Power: A unit is only as good as the team around it. If you have an elite Asima, ensure you have a dedicated attack-bar buffer (like a fast Megan or Bastet) to support her.
3. Utilize Practice Mode: Never take a new team into a live Siege Battle without testing it in the guild practice mode first. Use this time to check your turn order and ensure your units move in the correct sequence.
4. Identify Counter-Matches: Pay attention to which defenses your guild struggles to break. If your guild consistently loses to "Speed Lead + Control" teams, prioritize building units with immunity or passive cleanses to counter that specific threat.

By focusing on these strategic pillars, you will transform your roster from a collection of powerful monsters into a cohesive, competitive force capable of dominating the Siege Battle landscape.