Best 5 Imaginary Units in Honkai: Star Rail 2026
Imaginary's Imprisonment break (delay + slow) makes it the premier control element. Fu Xuan and Aventurine are top sustains; Sunday is the best summon/Harmony; Welt is the free controller; Mydei is an Imaginary Destruction carry.
How We Rank These
Imaginary units combine control with strong supports and carries. This list ranks the strongest Imaginary characters to build.
Fu Xuan
Quantum Preservation who shares team damage and grants team-wide CRIT. The best Imaginary-element sustain/enabler.
Watch out: Limited unit; best in hypercarry cores.
Aventurine
Imaginary Preservation shielder with strong follow-up damage. Premium aggressive sustain.
Watch out: Follow-up needs specific setups.
Sunday
Imaginary Harmony who advances an ally and their summon with big CRIT DMG. Best for summon/Erudition cores.
Watch out: Best value with a summon/erudition carry.
Welt
Imaginary Nihility who Imprisons and slows enemies — the best free controller for elites and bosses.
Watch out: Modest personal damage; utility-focused.
Mydei
Imaginary Destruction bruiser with HP-scaling Vendetta and built-in sustain.
Watch out: Wants a healer and HP% relics.
Verdict
Frequently Asked Questions
Who is the best Imaginary support?
Sunday for summon/Erudition carries; Fu Xuan for hypercarry/no-healer cores. Both are S-tier in their roles.
Is Welt still useful in 2026?
Yes as a free controller — Imprisonment is excellent vs elites and bosses even with limited units around.