Summoners War Rumicus Light Charger Shark

LIGHT CHARGER SHARK

Rumicus

★★★

ATTACK

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Overview

Summoners War Rumicus Light Charger Shark Attack-type monster with a 23% Speed leader skill for Light allies. His passive skill lets him recover HP and Attack Bar when he kills an enemy, making him ideal for chaining turns. Though his base Speed is only 105, he offers good debuffs and sustain. He works well in Arena, Guild Wars, and Light-only teams. Recommended runes include Fatal/Blade for early game and Violent/Revenge for later stages, focusing on ATK%, Crit Rate, and Crit Damage. He’s not a top-tier nuker but shines as a self-sustaining support attacker.

Rumicus Stats

Base Stats

Awakened Stats

How to Obtain Rumicus

Light and Dark Scroll

Temple of Wishes

1. Summoning Pools

• Rumicus can be summoned from Light & Darkness Scrolls, Mystical Scrolls, Social Summon, and Mystical Portal, as he is a natural 3★ monster in the general summon pool.
• He may also appear in the Temple of Wishes through the Light elemental option.

2. Secret Dungeon (Summoning Pieces)

• Occasionally available through Secret Dungeon events for the Charger Shark family. By farming 40 summoning pieces during the event, you can summon him. While Light-element Secret Dungeons are rare, similar events for other Charger Sharks have occurred, suggesting a possible Light version in the future.

3. Summoning Piece Shops

• During events, Charger Shark pieces or universal Almighty Summoning Pieces may appear in Guild Shops, Glory Shops, or special event shops, which can be used to summon Rumicus.

Awakening Essence

Essence of Light (Low)

Essence of Light (Mid)

Essence of Magic (Low)

Essence of Magic (Mid)

To awaken Rumicus, you’ll need the following materials:

• 15 Mid Light Essence
• 10 Low Light Essence
• 10 Mid Magic Essence
• 5 Low Magic Essence

Awakening Bonus:

• Gain Leader Skill: Increases the Attack Speed of Light attribute allies by 23%
• Minor stat improvements across HP, ATK, and DEF

Awakening enhances Rumicus’s team utility significantly by providing a valuable Speed lead, especially in Light-based teams.

SKILL UPS

Lunging Wave

• Increases damage and effect duration.
• Total Skill Ups Needed: 5
  • Lv.2: Damage +5%
  • Lv.3: Damage +5%
  • Lv.4: Damage +10%
  • Lv.5: Effect Rate +10%
  • Lv.6: Effect Rate +10%

Drive

• Improves damage and debuff chance.
• Total Skill Ups Needed: 5
  • Lv.2: Damage +10%
  • Lv.3: Effect Rate +10%
  • Lv.4: Damage +10%
  • Lv.5: Effect Rate +10%
  • Lv.6: Cooldown -1 turn

Feast (Passive)

• This passive does not require any skill-ups.

Total Devilmons/Skill-ups needed: 10
Note: As a 3★ monster, Rumicus can be skill-upped using other Charger Sharks (any element) instead of Devilmons.

Skills

Leader Skill (Awakened)	Lunging Wave	Drive	Feast (Passive)
Increases the Attack Speed of ally monsters with Light attribute by 23%.	Performs a lunge attack that damages an enemy while increasing your Critical Rate for 1 turn. Multiplier: 3.8*{ATK}	Attacks an enemy target, decreasing its Attack Power and Attack Speed for 2 turns with an 80% chance. (Reusable in 3 turns) Multiplier: 5.4*{ATK}	Recovers the HP by 30% and the Attack Bar by 50% whenever you kill an enemy on your turn. [Automatic Effect]
	Damage +5% Damage +5% Damage +5% Damage +5% Damage +10%	Damage +10% Harmful Effect Rate +10% Damage +10% Harmful Effect Rate +10%

Rune

Build	4-Set(s)	2-Set(s)	Stat Priorities
Early Attacker	Fatal	Blade Will	Atk, CR, CD, Acc
Self-sustaining attacker/farmer	Vampire	Blade Revenge Nemesis	Atk, CR, CD, Acc
Highest Damage Potential	Rage	Blade Will Destroy	Atk, CD, SPD, CR, ACC

Strategy

Rumicus is best used as a sustain-attacker and turn-cycling utility unit in Light attribute teams. His passive skill, Feast, allows him to recover both HP and Attack Bar upon killing an enemy, making him excellent for prolonged fights where he can chain turns and keep himself alive without healer support.

Key Roles:

• Speed Leader for Light Teams: His 23% Speed lead is valuable in Arena, Guild Wars, and Light-only content like the Light Rift or Light Hall of Heroes.
• Turn Cycler: The combination of Feast and a decent SPD stat lets him loop turns if built with Crit and ATK.
• Debuffer: His second skill, Drive, applies Attack Break and Speed Slow, disrupting enemy damage output and turn order.
• Self-Sufficient Attacker: With healing and ATB recovery built into his passive, he functions well without heavy support.

Battle Modes:

• Arena (Offense/Defense): Use him with other Light units for Speed lead advantage. He’s ideal against teams with weaker sustain.
• Guild Wars/Siege: Great in Light-based teams or comps where you need a self-sufficient damage dealer with utility.
• Light Element Challenges: Rumicus thrives in mono-Light stages where his Speed Lead and consistent debuffs shine.

Tips:

• Focus on Crit Rate: His first skill boosts his own Crit Rate, so stacking Crit Damage and ATK% lets him hit hard consistently.
• Pick Off Low HP Targets: Maximize value from Feast by sniping low-health enemies to gain HP and turn bar.
• Pair with Strip or Defense Break: Pair him with units who can strip or break defense to make his kills easier and consistent.

Rumicus excels when built to capitalize on his kill-reward loop and team Speed buff, making him a reliable utility attacker in Light-focused comps.

Strength and Weakness

Strengths:

• Speed Leader Skill: +23% Attack Speed for Light allies boosts turn order and team efficiency.
• Self-Sustaining: Feast passive heals 30% HP and grants 50% Attack Bar after each kill.
• Reliable Debuffer: Drive skill applies Attack Break and Speed Slow for 2 turns.
• Skill-Up Friendly: Can be skilled up using any elemental Charger Shark (no Devilmons needed).
• Versatile Usage: Usable in Arena, Guild Wars, and Light-exclusive content.
• Crit Rate Buff: First skill boosts his own Crit Rate, enhancing damage potential.

Weaknesses:

• Low Base Defense and HP: Can be fragile if not protected or if runes aren’t strong enough.
• Dependent on Killing: Feast passive only activates after a kill—less effective in drawn-out or tanky fights.
• Mediocre Base Speed (105): Needs good SPD substats or rune sets to compete in turn order.
• Limited Outside Light Teams: Leader skill is only for Light attribute allies, reducing team flexibility.

Synergy

Rumicus works best when paired with monsters that support his turn cycling, burst potential, and survivability. He excels in Light attribute teams where his Speed lead can be fully utilized.

Best Synergy Partners:

• Darion (Light Vagabond) – Provides Defense Break and team-wide damage reduction, helping Rumicus survive longer and secure kills for his passive.
• Shren (Light Mystic Witch) – Grants buffs like Attack and Crit Rate, which increase Rumicus’s kill potential and burst damage.
• Fran (Light Fairy Queen) – Offers ATK Buff, Immunity, and Healing; keeps Rumicus safe and boosts his damage output.
• Bella (Light Inugami) – Strips enemy buffs and Defense Breaks, making it easier for Rumicus to secure kills and trigger Feast.
• Lumirecia (Light Sylphid) – Provides support, heals, and cleanses to keep Rumicus alive during longer fights.

Rune Support Monsters:

• Verdehile (Fire Vampire) – Not a Light unit, but if using Rumicus outside mono-Light comps, Verde’s team-wide ATB boost complements his turn-looping nature.
• Konamiya (Water Garuda) – Helps cleanse and grants additional turns, allowing Rumicus to attack more often and secure his passive activation.

Team Composition Tip:

Rumicus thrives in speed-based Light comps that focus on quick kills and efficient cycling. Pair him with:

• A defense breaker to soften targets.
• A buffer or healer to ensure survivability.
• A stripper or ATB booster to control the turn order and open up opportunities for kills.

Frequently Asked Questions (F.A.Q)