What is the best team in Reverse: 1999?
There is no single best team — the game rewards matching your damage dealer to the stage. In practice the strongest builds stack one mechanic (Burn, Poison, Crit) from several Arcanists at once, then add one Survival unit so the damage-over-time has time to land. Pick the team above whose damage dealer you already own.
Can I clear the game without Euphoria?
Yes. Every team marked "No Euphoria needed" on this page is fielded entirely by Arcanists whose ranking does not assume an unlocked Euphoria, so a free-to-play account can build it as-is at Insight III.
How many Arcanists does a team need?
Four slots, but only three do the work in most fights: a damage dealer, a support that amplifies them, and a Survival or second support. The fourth slot is a substitute — use it to raise bond, or swap in one of the flex picks listed under each team.