Archer 
The Hunt 
HP
ATK
DEF
SPEEDDps Build
Best Light Cone
Archer Best Stats
Archer Best Substats
Archer Best Teams
F2P Team
For a F2P team, you can use Archer with Sparkle and the Remembrance Trailblazer. Sparkle provides SP and advances Archer's turns. The Remembrance Trailblazer gives Archer more turns and allows him to deal True DMG while being SP positive. Permansor Terrae boosts Archer's ATK and provides shields for the party.
Beginner Team
For beginners who don't have any limited 4-Star or 5-Star characters yet, you can use any two Supports with Archer. Remembrance Trailblazer and Hanya his best free-to-play options for Archer since they provide turn-advance and SP-generation respectively.
Best Team
Archer's best teams consist of allies that provide Skill Points and are generally SP-friendly. It should be noted that turn-advance Supports should have at least 160 SPD to bring the slow Archer in front of the turn order. Sparkle is undoubtedly Archer's best Support since she provides both Skill Points and turn-advance. Since Archer will consume a lot of Skill Points, using SP-Positive Sustains like Permansor Terrae or Gallagher will make your gameplay comfortable.
Skills
Deals Quantum DMG equal to #1[i]% of Archer's ATK to one designated enemy.
Enters the "Circuit Connection" state. Deals Quantum DMG equal to #1[i]% of Archer's ATK to one designated enemy. After using Skill in the "Circuit Connection" state, the current turn does not end, and the DMG dealt by Archer's Skill increases by #2[i]%. This effect can stack up to #3[i] time(s), lasting until he exits the "Circuit Connection" state. After actively using Skill #5[i] time(s) or when Skill Points are insufficient to use Skill again, exits the "Circuit Connection" state. After all enemy targets have been defeated in each wave, exits the "Circuit Connection" state.
Deals Quantum DMG equal to #1[i]% of Archer's ATK to one designated enemy and gains #2[i] point(s) of Charge, up to a maximum of #3[i].
After Archer's teammates attack enemy targets, Archer consumes 1 Charge and immediately launches Follow-Up ATK on the primary target, dealing Quantum DMG equal to #1[i]% of Archer's ATK and recovering 1 Skill Point. If the target is defeated before this Follow-Up ATK is launched, the Follow-Up ATK will be directed at one random enemy instead.
Unleashes an extra attack on the target. This effect is triggered automatically when requirements are met.
Traces
Eidolon
After using Skill
When using Ultimate, reduces the enemy target's Quantum RES by
Skill Lv. +2, up to a maximum of Lv.
Increases the Ultimate DMG dealt by
Ultimate Lv. +2, up to a maximum of Lv.
When the turn starts, recovers 1 Skill Point for allies. The maximum number of stacks allowed for the DMG boost effect provided by this unit's Skill increases by