IGN: "As you can see, Toki is a 6 mana 5/5 with the battlecry “Add a random legendary minion from the past to your hand.” What does that mean? It means she’ll only pull legendaries that are exclusive to Wild – even if you’re playing inWild. Those legendaries can be from any class too."
Woah! Wild only legendaries in standard seems really good, the problem is that this is a mage card. It might see play in some type of control mage as opposed to Sindragosa, but having the 0/1's to ping of is really good. As with every card, we need to wait for the rest of the reveals to evaluate it properly.