Okay so basically illusions and baits. With good reactions you can be someplace with Q and doing things but then it's like you were never there. With her ult, it's mimicking what she did. It's not real, but it acts real and it's real enough to hurt you. Ethereal Chains are the same sort of thing that are illusions that are real if you keep looking at them and believe in them. Sigil of Silence is the only one that doesn't really fit the theme of a deceiver very well but it's still keeping her victims silent so as not to ruin the charade.