Mass Effect 2/Unused Text/Unused Codex Entries

Enforcement Gauntlets
(The description here closely resembles the omni-blades of Mass Effect 3.)

Reapers: Computers
Exists only as a title.

Reapers: Construction
Exists only as a title.

Sovereign
There's a version of Sovereign's codex entry that differs from the one in the final game: