Clocktower.fyi

Legion and the Engineer can not both be in play at the start of the game. If the Engineer creates Legion, most players (including all evil players) become evil Legion.

If the Preacher chooses Legion, Legion keeps their ability, but the Preacher might learn they are Legion.

If Legion died by execution today, Legion keeps their ability, but the Minstrel might learn they are Legion.

If the Hatter dies and Legion is in play, nothing happens. If the Hatter dies and an evil player chooses Legion, all current evil players become Legion.

The Zealot might register as evil to Legion's ability.

If the Summoner creates Legion, most players (including all evil players) become evil Legion.

If a player registers as both a Minion and a Demon, the Alsaahir must guess that player as a Demon in order for their guess to be correct.

A Plague Doctor death can result in a Minion ability in a Legion game.

A Knight cannot see any Legion player in their info, regardless of if they're registering as a Minion.

Politician/Legion is not a fun combination - the Politician is incentivised to vote on literally any execution but their own and be the single good vote Legion needs to pass every vote – again it's difficult to claim they weren't most responsible here.