Emma
Fire 
Machine Gun 
Supporter 
Burst 1 
Elysion Tier 5 Cheerleading
■ There is a 5% chance to activate when attacked. Affects all allies.
Restore HP equal to 10.77% of the caster's final Max HP.
Temptation
■ Active when HP is above 90%. Affects all allies.
HP Recovery ▲ 13.33% permanently.
Altruism
■ Affects all allies.
Recover HP equal to 39.6% of the caster's final Max HP.
Recover 39.6% of attack damage as HP over 5 sec.
Skill recommendations
Solo Raid Usage
This is based on the top 50 players of all NIKKE servers combined. Data is from enikk.app, check their website for a lot more raid data.
SeasonWeakness
5
6
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9
10
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14
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34
Extra notes
By today's standards, a really bad kit that's just underwhelming on most (if not all) PVE content. Invest only if she is your waifu.