I currently don't have a copy of Temporal Mastery available, but good suggestion, thanks, I'll swap it in soon. The other two are in the deck and did well. I do have to make sure I don't get too much draw in it, Both games I played I had to discard EOT way too often. Perhaps some mana sinks? Discarding does help if I get in more delve spells, offcourse. Maybe I should look at delve as a mana sink.

I'm also going to try to go deeper in the sneaky thievevery and assassination theme, adding Blatant Thievery and cards like that.