Typhoeus Best Team Compositions

Liino provides a team-wide heal, attack buff, and applies Nature Amp with her Ultimate. She also works quite well as an SP battery as long as you're casting battle skills AFTER she has used her combo, providing 10sp return for each skill used. This makes her a good all-round support for any DPS that can benefit from her buffs, and Typhoeus is no exception to that. Surprisingly, Perlica fits very well into this team not only as a trigger for Liino, but her forced application of Electrification will provide extra DMG taken by Arts as well.

Arcane is an amazing Operator for applying Nature Infliction stacks to the enemy, provides crowd control, on top of also applying Nature and Cryo Susceptibility to the target. Typhoeus can benefit from all of these, making Arcane a great premiere partner for her as well.
Depending on what you want your Arcane to focus on, her Int Array build will provide more personal damage and forced Corrosion application with her Ultimate, while the Will Array build will provide slightly more crowd control with a pull effect on her Battle Skill, which can help with grouping enemies in certain endgame content stages. The Nature and Cryo Susceptibility will get applied in either mode.

Ardelia and Gilberta both apply Arts Susceptibility to the target, as well as providing Nature Infliction stacks or Healing to the team. You generally want at least one healing character per team, and Ardelia is an easily accessible choice, while Gilberta is a great grouper and damage support. Fluorite is a 4-star Operator, and is even easier to access, especially if you weren't able to grab a free Ardelia on the launch of the game. Providing a high rate of Nature Infliction stacks to the target, she can work out surprisingly well alongside Typhoeus.