Marciana: Marine Study

YES. Skill 1 deals up to 3789.25% of final ATK as bonus damage to the highest-Max-HP enemy and keeps auto-retargeting, making her one of the stronger sustained single-target damage sources over time. Skill 2 self-stacks ATK and can auto-clear AoE when enemies are numerous, while her Burst both buffs her own damage and lowers Electric-code enemy DEF. Worth pulling for squads that need a flexible Iron Attacker for both single-boss and multi-enemy stages.

Marciana: Marine Study is an Iron Attacker (Burst III, Assault Rifle) from Squad Academia, built around marking a target for continuous bonus damage.

Skill 1, Emergency Whistle, triggers on entering Full Burst after using her Burst Skill: it marks the enemy with the highest Max HP for 3789.25% of final ATK as bonus damage and lowers its ATK by 10.56% for 10 sec; if that marked target is defeated, the same marking effect auto-transfers to another random enemy.

Skill 2, Penguin Emergency Dispatch, self-stacks an ATK buff of 32.73% per stack (up to 5) at battle start and whenever 3 or fewer enemies remain; once 6 or more enemies are present, it consumes stacks to deal 214.36% of final ATK as AoE damage to all enemies.

Her Burst, Penguin Spiral, adds Attack Damage +27.45% and Elemental Advantage Attack Damage +30.97% to herself for 10 sec, while also lowering DEF of all Electric-code enemies by 10.56% for 20 sec.

Best used on stages with a single high-Max-HP target (bosses) that need sustained bonus damage, or on stages with many small enemies to trigger Skill 2's AoE.

Skill investment roadmap (Skill 1/Skill 2/Burst): 4/4/4 (playable) → 7/4/7 → 10/7/10 (final). Why: Skill 1 (3789.25% marked bonus damage) and Burst (self damage buff + enemy DEF reduction) carry most of her single-target damage, so prioritize those; Skill 2 only maxes out on stages with many small enemies, so it can be leveled later.

Strengths

• Skill 1 deals a massive 3789.25% of final ATK as bonus damage to the highest-Max-HP enemy, and auto-retargets when the marked enemy dies.
• Skill 2 self-stacks ATK and can auto-clear AoE when enemy count is high, with no conditional support needed from allies.
• Her Burst both buffs her own damage and lowers Electric-code enemy DEF, useful against Electric enemies.

Weaknesses

• Her main damage relies on using Burst Skill first, then entering Full Burst — the exact sequence is required to trigger Skill 1.
• The Burst's DEF-reduction effect only applies to Electric-code enemies, not universally.

“Marciana heads to the beach with Tia and Naga, having been told they're going on a graduation trip. Convinced it might actually be another test rather than a vacation, she becomes exceedingly on edge.”