Version 6.1's Lunar Mode in Imaginarium Theater? It's a beast—28-32 characters across 12 acts, locked to Hydro/Electro/Dendro teams plus those special Guests like Arlecchino, Zhongli, Diona, and Lynette. No Neuvillette (that beastly Hydro DPS) or Furina? No sweat. Loan Nahida for Dendro punch, Neuvillette anyway if you can snag him, and Flins (the 5★ Polearm Electro newcomer). Clears Act 3 with Cyno/Ororon swaps, Act 6 via Nahida/Xingqiu. Bag +200 Primogems for regular clears, +300 for your first Excellence run. F2P folks, this is doable with 4★ loans like Aino or Fischl.
Quick Rundown on 6.1 Imaginarium Theater
Lunar Mode demands 28-32 chars over 12 acts. Hydro/Electro/Dendro core, spiced with Guests. Rewards hit sweet: +200 Primogems standard, +300 Excellence bonus on debut. Openers—Furina, Cyno, Alhaitham, Barbara, Ororon, Yaoyao—dish out +20% HP/ATK/DEF buffs.
Here's the playbook: Stock a roster with 1 Electro DPS, 1 Hydro applicator, 1 Dendro core, and a healer/shielder. Loan 1-2 key roles. Push for full clears.
Element Locks and How Loans Save Your Run
Teams stick to Hydro/Electro/Dendro + Guests. Sans Neuvillette/Furina? Loans shine: Dendro from Nahida, Tighnari, Lauma; Hydro via Neuvillette, Xingqiu, Sangonomiya Kokomi; Electro with Flins, Clorinde, Raiden Shogun. Go hard on 5★ Flins (Polearm Electro) or 4★ Aino (Claymore Hydro).
Quick steps: Scan the loan pool for your elements. Stack Electro-Charged reactions with Hydro/Dendro synergy.
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Best Loan Characters, Broken Down by Element

Hydro loans: Neuvillette, Yelan, Xingqiu, Nilou, Sangonomiya Kokomi, Aino, Sigewinne, Kamisato Ayato.
Electro: Ineffa, Flins, Clorinde, Varesa, Yae Miko, Fischl, Raiden Shogun.
Dendro: Lauma, Nefer, Nahida, Baizhu, Kirara, Tighnari.
Spotlight picks: Flins for Act 8 shields. Neuvillette crushes Act 10. Nahida handles Act 6 Hydro shields. Play it like this—Dendro: Nahida/Tighnari (Acts 6/10); Hydro: Neuvillette (Act 10), Xingqiu (Act 6); Electro: Flins/Clorinde (Act 8), Raiden (Act 6).
Crushing Acts 3 and 6 with Loan Power

Act 3's Maguu Kenki? Melee DPS with shielding—deflect those ranged shots. Team it up: Cyno, Ororon, Yaoyao, Barbara (Electro/Dendro/Hydro mix).
Act 6 (Cleansing Shower/Vishap) needs Dendro to shred Hydro shields, plus healing. Go Nahida, Xingqiu, Raiden Shogun, Tighnari.
Steps? Act 3: Loan Cyno/Ororon, stick to melee positioning. Act 6: Grab Nahida/Raiden loans, lead with Dendro, keep the healer up.
Act 8-10 Boss Takedowns and Counters

Act 8 Duckstruction—Electro-Charged or Lunar-Charged the boss, dodge those arm slams. Team: Flins, Aino, Mona, Fischl.
Act 10? Hydro on the Pyro horns breaks shields, slows 'em down. Squad: Lauma, Neuvillette, Kuki Shinobu, Furina (loan Neuvillette/Lauma if needed).
Break it down: Act 8, loan Flins/Aino for charged reactions. Act 10, Hydro the ground horns, let Neuvillette DPS. Always dodge the arm retract—brutal otherwise.
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Tackling Lunar Mode Arcana Challenges
Challenge 1: Smash Shadowy Husks fast—cuts the countdown while HP drains. Skip shields. Team: Neuvillette, Raiden Shogun, Sangonomiya Kokomi, Fischl.
Challenge 2: Drop boss to 50% HP, spawn 4 Ruin Machines—nuke one first. Team: Clorinde, Sangonomiya Kokomi, Dahlia, Iansan.
How-to: Challenge 1, loan Kokomi/Neuvillette, prioritize Husks and heal up. Challenge 2, loan Clorinde, burst after machines pop.
F2P Team Hacks and No-Neuvillette/Furina Workarounds

Core loans: Flins (Electro DPS), Aino/Neuvillette (Hydro), Nahida (Dendro)—covers all acts, plus Guests like Zhongli/Diona. F2P swaps? Fischl (Electro), Xingqiu (Hydro), Tighnari (Dendro).
Build steps: 1. Anchor with Flins loan, Xingqiu, Nahida loan. 2. Flex in Yaoyao/Barbara. 3. Practice mode—test energy flow.
(Quick aside: In my clears, this setup's held up 90% of the time—pure data from runs.)
FAQ
Best loans without Neuvillette or Furina?
Nahida (Dendro), Neuvillette (Hydro, if available), Flins (Electro)—prime for reactions and DPS.
Clear Act 3 sans Furina?
Loan Cyno/Ororon. Team: Cyno, Ororon, Yaoyao, Barbara. Melee focus, dodge ranged.
Prime Hydro loan for Act 10?
Neuvillette—Hydro on Pyro horns for shield breaks and slows.
F2P clear 6.1 Imaginarium?
Totally: Aino (4★ Hydro), Fischl (Electro), Tighnari (Dendro) + Nahida loan.
Clear rewards?
+200 Primogems regular, +300 initial Excellence.
Act 8 shield break?
Flins, Aino, Mona, Fischl: Electro-Charged spam. Dodge arm slams.