Tia

Iron

Rocket Launcher

Defender

Burst 1

Missilis

Reptile Lover

■ Activates when recovering Cover's HP. Affects self.
Cooldown of Burst Skill ▼ 13 sec, stacks up to 2 time(s) and lasts for 12 sec.
■ Activates when recovering Cover's HP. Affects all allies.
Attack damage ▲ 32.11% for 10 sec.

Chameleon Invisibility

■ Activates after landing 5 normal attack(s). Affects self.
Cover's Max HP ▲ 32.75% of the caster's Max HP, lasts for 5 sec.
Attract: Taunt all enemies for 5 sec.
■ Activates when using Burst Skill. Affects self.
Recovery of Cover's HP ▲ 21.41% of the caster's final Max HP.
Recovers 21.96% of attack damage for 10 sec.

Lizard's Protection

40 sec Cooldown

■ Affects self.
Generates a Shield with 35.07% of the caster's final Max HP for 10 sec.
■ Affects all allies (except self).
Generates a Shield with 10.21% of the caster's final Max HP for 10 sec.
■ Affects all allies.
Re-enter Burst Skill Stage 1.

HP Boost

■ Activates when attacking an enemy. Affects this unit's squad only during battle.
Max HP ▲ 20% continuously.

Skill recommendations

Skill 1

Skill 2

Burst

Build

Cube: Resilience for faster reload. Quantum could work if your account is low level and you don’t have any more spots open on other cubes.

OL Gear: Other than ATK for her heals, the rest of the stats can be fillers. Charge speed and max ammo capacity are good options.

Pros & Cons

Great Attack damage buff (better than normal ATK buffs)
Shield can bypass one-shot mechanics while providing taunt, heals, repair cover and increasing max HP of the covers

Since she re-enters burst, forces you to play double burst 1 making team compositions a bit more limiting
Needs to be paired with Naga to be usable and unlock full potential