The collaboration between Arknights and Delicious in Dungeon introduces two unique operators, Laios and Marcille, enhancing the strategic depth of this popular gacha game. Understanding their skills, playstyles, and deployment strategies is crucial for maximizing their potential in your gameplay.
Both characters can be acquired through the Crossover Limited Headhunting banner, requiring players to navigate the gacha system. Once you have these units, leveraging their abilities effectively is key, which is why we've put together this comprehensive guide.
Laios: The Curious and Calculated Frontliner
Laios is a 5-star melee unit categorized under the Dreadnought Guard branch, known for his potent, single-target offense. What sets him apart is his kit, which encourages players to consider enemy types and capitalize on recurring spawns. He's not a plug-and-play unit; rather, he thrives under players who strategize and adapt to his unique traits.

Skills and Combat Use
Laios’s skills are tailored for players who appreciate a tactical approach:
- Curiosity’s Edge: This skill increases his attack power against specific enemy types, making him a formidable force when used strategically.
- Survival Instinct: Boosts his defense and health regeneration, allowing him to withstand tougher battles and maintain frontline presence.
- Party Leader: Enhances his synergy with other Laios’s Party members, providing buffs that can significantly alter the course of a battle.
Marcille: The Versatile Mage
Marcille, a 5-star caster, brings versatility and power to your team. Her skills are centered around mana management, offering various damage profiles and utility options.
Skills and Combat Use
Marcille’s skills are designed to maximize impact based on mana usage:
- A Top Student’s Abilities: A burst skill that boosts Marcille’s attack. When no enemies are nearby, she shifts to healing allies, making her a flexible asset.
- Summon Familiar: Creates a companion that enhances her basic attacks with slow effects. Recasting the skill upgrades the familiar, increasing range and adding stun effects, perfect for crowd control.
- Explosion Magic: Her ultimate skill, a high-mana nuke that, after chanting, causes a massive AoE explosion with a stun effect. Extended chanting turns it into a multi-hit attack, ideal for clearing groups swiftly.
Marcille’s effectiveness hinges on managing her uptime. Deploy her strategically during crucial waves, execute a few skills, and then retreat to rebuild mana. This cycle rewards precise timing and planning, especially with SP-focused supports or delay tactics.
Building and Synergy
Marcille truly shines at Elite 2, where her second talent not only boosts her initial mana but also provides significant team-wide buffs when paired with Laios’s Party units. Prioritize her skills as follows:
- Skill Upgrade Focus: Summon Familiar for utility; Explosion Magic for burst damage.
- Best Potentials: Focus on increasing ATK and reducing redeployment time.
For synergy, Marcille excels with operators who can protect her during chants or indirectly boost her SP. She synergizes well with Laios and other Laios’s Party members for added team buffs, and also fits into caster-focused compositions needing both damage and control.
Laios and Marcille introduce a dynamic and rewarding playstyle to Arknights. Laios requires tactical precision, while Marcille demands careful mana management for impactful results. Together, they offer a versatile core capable of tackling both single-target and AoE challenges.
For those looking to experiment with new team builds, particularly those centered around the Laios’s Party tag, these units provide excellent synergy potential. To ensure the smoothest gameplay, especially during intense missions, consider playing Arknights on PC with BlueStacks for enhanced control, larger visuals, and uninterrupted gameplay.