feel free to add on to this and add other house rules influenced by other houses

Slytherin, influenced by Hufflepuff

1) Stand up for what you know is right, and if you're unsure, ask a friend

Slytherin, influenced by Gryffindor

1) Don't break rules when someone is depending on you not to

Slytherin, influenced by Ravenclaw

1) You are more than a word, but a word holds power

Pure Slytherin

1) Villains cannot be trusted, but make sure you know who the true villain is.