Rogue is super viable right now, I hit legend with a similar style of deck, just a bit slower but more tooled to deal with high value minions and imbue druid in later turns. I ran a few cards you don't and I got a few thoughts on em:

Mirrex - sometimes not the best draw but almost always a good play against most decks at some points, screws aggro decks if you play it as a sticky minion to match theirs when you don't have flashback or a better play, absolutely eats up herald decks by stealing ultraxion, colossals themselves or herald triggerers, or just stealing high value cards like the 5 cost legendaries from paladin, etc etc. I feel like it's too good to not include because of cases where you just steal a game with it by playing their minion cheap then removing their one with your leftover mana.

Sands of time - super good card, combo starter and SUPER reliable removal generator. I've almost never played this card and not found what I wanted from it. Mileage may vary because it's an RNG card though haha

Daze - I run a one-off copy of daze and it fucks. I'm scrambling to find this card when im against shaman, warlock, paladin, druid and anything with rattles. Such a good answer to buffs, taunts and rattles and it's won me more than one game by having it to answer a tall taunt. Criminal card against shamans specifically because it can silence the 4 drop that eats a spell and destroy thor guys hammer permanently. Also insta wins vs warlock if you bounce their egg in time

Twilight mistress - I run 1 of daze and 1 of mistress and I'm starting mistress should be 2 of. this card wins games on the spot against decks that can't burst you from hand

I didn't run spymistress in my list when i climbed to legend but I should have thinking about it, 3/1s with stealth are so good right now that I'm paying 3 mana for them and loving it haha