Oh that's right you're here Timmard.

You can upgrade your CHAIR and use MODUS OPERANDI SKILLS.

Each CHAIR adds either an invisible ability or increases its density for more impact when thrown.

CHAIR upgrades are cumulative.

The next upgrade for your chair is:
DELRIN CORE => 1000 G(S)

Because your CLASS OPERANDI is ILLUSORY GUMSHOE you can only use SKILLS relating to paranormal phenomena and sleuthing work.