A lot of colorless creatures use or generate colored mana for their abilities
It is a high priority kill target but is sturdy for its low cost and typically saves you a lot of hurt even if it just gets you 0 or 1 life
Luckily, the argument against it can really end there, because this card wasnt explicitly designed for Commander and can live in an ecosystem of Cube
One thing that 40k the game has that Commander doesn't really, is the ability to create your own heroes (or villains) and equip them with various wargear or abilities that belong to the tradition of those factions
Fact or Fiction is the classic, and to my mind fair, draw spell
However, if you really want to play with Star Wars Magic cards, there is already a pretty good solution