The collaboration between Arknights and Delicious in Dungeon brings two unique operators to the game: Laios and Marcille. Understanding their skills, playstyles, and deployment strategies can significantly enhance your gameplay experience. Both characters are available through the Crossover Limited Headhunting banner, requiring patience and luck to unlock. Once you have them, maximizing their potential is key, which is why we've put together this comprehensive guide.

Laios: The Curious and Calculated Frontliner

Laios, a 5-star melee unit from the Dreadnought Guard branch, excels in single-target offense. His unique kit rewards players who pay close attention to enemy types and leverage repeated spawns. He's not a unit you can simply deploy anywhere and expect top results; instead, he's designed for players who plan ahead and understand his quirks.

Skills and Combat Use

At Elite 2, Laios unlocks the talent Reliable Companion, which provides 25 initial mana and a powerful team-wide buff when your squad includes four or more Laios’s Party members. This talent boosts ASPD and DEF for the entire group, significantly enhancing both offense and survivability.

Marcille: The Versatile Mage

Marcille, a 5-star caster, offers a range of skills that cater to different combat scenarios, all centered around mana management and timing.

Skills and Combat Use

Marcille's three skills provide varied utility and damage profiles:

• A Top Student’s Abilities: A burst skill that enhances Marcille’s attack using mana. If no enemies are nearby, it heals allies instead, making it versatile for mixed-role usage.
• Summon Familiar: Creates a companion that boosts her basic attacks with slow effects. Re-activating enhances the familiar, increasing her range and adding a stun to each hit. Ideal for crowd control and stalling tactics.
• Explosion Magic: A high-mana skill that, after chanting, causes a massive AoE explosion with a stun effect. Continued chanting and additional mana turn it into a multi-hit attack, clearing groups of enemies quickly. Perfect for high-pressure stages.

Marcille's gameplay revolves around managing her uptime. Deploy her during key wave moments, use a skill or two, and then retreat to build mana again. This cycle rewards good 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 increases her starting mana but also provides incredible team-wide buffs when running a crossover-themed squad. For skill priority, Summon Familiar is versatile and effective across many stages, while Explosion Magic is ideal for needing massive burst damage.

Recommended Development Path:

• Promotion Priority: Elite 2 for mana scaling and support synergy
• Skill Upgrade Focus: Summon Familiar for utility; Explosion Magic for burst
• Best Potentials: ATK increase and redeployment time reduction

For synergy, Marcille pairs well with operators who can protect her during chants or indirectly boost her SP. She works excellently with Laios and other Laios’s Party units to leverage the team buff, and also fits into caster-focused compositions needing both damage and control.

Laios and Marcille add a unique flavor to Arknights, offering rewarding and quirky gameplay. Laios requires precision and tactical placement, while Marcille challenges players to manage her presence and mana for explosive results. Together, they form a versatile core capable of tackling both single-target and AoE challenges.

If you're interested in exploring new team builds, especially those centered around the Laios’s Party tag, both units offer strong synergy potential. For the smoothest gameplay experience, particularly during intense missions, consider playing Arknights on PC with BlueStacks for better controls, larger visuals, and uninterrupted gameplay.