Arknights' collaboration with Delicious in Dungeon brings two unique operators, Laios and Marcille, to the acclaimed strategy gacha game. Mastering their abilities, playstyles, and ideal deployment tactics can greatly improve your performance.
These characters are exclusively available through their Crossover Limited Headhunting banner, so most players will need to rely on the gacha system to acquire them. Once you secure either unit, you'll naturally want to maximize their potential—this guide will help you achieve just that.
Let's dive in!
Laios: The Thoughtful and Strategic Frontline Fighter
Laios is a 5-star melee operator belonging to the Dreadnought Guard archetype, known for potent single-target damage. What sets him apart in The Doctor's roster is how his kit rewards players who study enemy types and leverage repeated spawns. He isn't an operator you can deploy indiscriminately and expect outstanding results. Instead, he excels in the hands of those who plan carefully and adapt to his unique mechanics.
At Elite 2, she unlocks Reliable Companion, granting 25 initial Mana and providing a substantial team-wide buff when your squad includes at least four Laios’s Party members. This talent boosts the entire group's ASPD and DEF, enhancing both offensive output and durability.
Skills and Combat Applications
Each of Marcille's three skills offers distinct utility and damage profiles, all revolving around Mana management and timing.
Top Student's Talent: A burst skill that consumes Mana to amplify Marcille's attacks. When no enemies are in range, she switches to healing allies—making it versatile for hybrid roles.Summon Familiar: Conjures a small companion that strengthens her basic attacks and applies slow. Reactivating the skill enhances the familiar, extending her attack range and adding a stun effect to each strike. Excellent for crowd control and stalling strategies.Explosion Magic: Her ultimate nuke. This high-Mana skill, after a chant period, unleashes a massive area-of-effect blast with a stun. By extending the chant and spending additional Mana, it transforms into a multi-hit assault capable of wiping out enemy groups rapidly. Ideal for intense, high-pressure stages.
Marcille's gameplay centers on managing her active time. Deploy her during critical enemy waves, use one or two skills, then retreat her to regenerate Mana. This cycle benefits from precise timing and strategic foresight, particularly when combined with other SP-reliant supports or delaying tactics.
Building and Team Synergy
Marcille truly shines after reaching Elite 2. Her second talent not only increases starting Mana but also delivers powerful team-wide bonuses when running a crossover-themed squad. For skill priority, Summon Familiar offers the most flexibility across various stages, while Explosion Magic is the go-to for overwhelming burst damage.
Recommended Development Path:
Promotion Priority: Elite 2 for Mana scaling and support synergySkill Upgrade Focus: Summon Familiar for utility; Explosion Magic for burst damageBest Potentials: ATK increases and redeployment time reductions
In terms of synergy, Marcille pairs well with operators who can protect her during skill chants or indirectly boost her SP. She works exceptionally with Laios and other Laios’s Party members to activate the team buff, and fits seamlessly into caster-heavy compositions that require both damage and control.
Laios and Marcille introduce a fresh dynamic to Arknights, delivering gameplay that is both rewarding and distinctive. Laios offers a guard who thrives on precise positioning and tactical awareness, while Marcille challenges players to balance her field time and Mana for game-changing results. Together, they form a versatile core capable of handling both single-target and area threats.
If you're experimenting with new team compositions, especially those built around the Laios’s Party tag, these operators provide excellent synergy. For the best gameplay experience during challenging missions, consider playing Arknights on PC with BlueStacks. Enjoy superior controls, larger displays, and uninterrupted sessions—everything you need to execute your strategies flawlessly.
