April

General overview

Her job is helidrop sniper, and she does it incredibly well: her camouflage from skill 2 grants her a lot of positioning flexibility, and her redeployment time gets a chunk shaved off by her talent. Since her kit is so unique and versatile, just about anyone will get good use out of her. However, her niche means that she's a very poor replacement for a core sniper, so she should be an accessory investment and not part of your core teambuilding.

E2? Not mandatory, but if you intend on using her a lot she really benefits from further development. She gets a shorter redeployment cooldown, becomes cheaper, and gets a lot out of masteries.

Talents

Talent - Experienced Hunter

E1 Redeployment time -15 seconds

E2 Redeployment time -20 seconds, DP cost -1

An essential part of her kit. Without any potentials, her redeploy time will be 55 seconds at E1 and 50 seconds at E2. At max potential, her redeploy time will be 45 seconds at E1 and 40 seconds at E2. The DP cost reduction at E2 is a nice bonus as well.

Skills

Skill 1 - Precise Shooting

Skill effect: Increases the ATK of the next attack to 200%/230%

Overview: A generic sniper skill that you're not going to use

Skill 2 - Flexible Camouflage

Skill effect: After deployment, ATK +70%/100% and gain camouflage

Overview: This skill makes her a very capable assassin; she's particularly good at handling enemies who would otherwise immediately kill your fast-redeploys like casters (especially if there are multiple of them in the area). It's also an excellent option for the giant bomb drones. On top of that, it can be used for catching leaks or emergency burst DPS since you can put her down without thinking about aggro. The duration is long enough that she can often take out multiple enemies before you need to retreat her.

M3 commentary: M3 is a luxury investment for sure, but it improves her effectiveness dramatically; her attack is doubled at M3, and the extra 6 seconds of duration go very far.