Hotori’s Ultimate stops time for everything except Blossom, which keeps dealing damage, so she’s the best support for Blossom teams. Aside from that, her Skill records three skills cast by allies - one per ally, and repeats them during her Ultimate. So Hotori fits perfectly with characters who have a very important effect on skill cast. Finally, she can record and replicate support skills instead.
Max Zero Charged Team
Jiuyuan,
Hotori,
Zero,
Hathor
The way Hotori repeats skill casts means she can replicate Zero skill for double Esper Meter refills. If you align all characters' skills right after Hotori skill, she repeats Hathor skill (normal version not hold), and grants her two extra feathers. Then repeat Jiuyuan's skill, for extra Bullets towards her Charged Attack
All repeated skills generate Esper Meter and Ultimate Energy for each character, so the team ramps up pretty fast. The team also proc Charged pretty easy, resulting in faster rotation for Hotori. And considering she freezes the timer during her Ultimate, the Hotori version of this team clears faster than any non-Hotori version.
Max Nanally Blossom Team
Nanally,
Jiuyuan,
Hotori,
Zero
With two Anima and two Cosmos, added to the double cast of Zero skill, this team procs Blossom nonstop. To the point that Cycle Intensity becomes the best stat for Zero and sometimes Hotori herself to maximize Blossom damage.
Nanally takes more field as the main carry. Hotori records Nanally’s skill, repeating it, but not repeating Nanally’s buff. So don’t be afraid of switching from Zero (with full Esper Meter) to Nanally, which records Nanally’s support skill instead of skill. There’s no waste here.
This is potentially the highest DPS team in the game at version 1.0
Chiz Hyper Carry Team
Premium:
Chiz,
Hotori,
Jiuyuan,
Hathor
F2P:
Chiz,
Hotori,
Mint,
Skia
Chiz’s Skill has three charges which she spam after using her Ultimate. Hotori can record only one charge, so make sure you record Hathor and Jiuyuan skills first before switching to Chiz.
In Beyond the Rail stages where enemies have Cosmos weakness, this team shines, because both Chiz and Hotori are Cosmos DPS. It's an especially good team against Bosses in the second half of Beyond the Rail mode.
If Jiuyuan is taken by another team, consider using Mint. And replace Hathor with Skia if unavailable.