This is The Open the Waygate HS Mage Quest Card from the Journey to Un’Goro expansion due for release in April.
The card reads: Quest: Cast 6 spells that didn’t start in your deck. Reward: Time Warp.
Time Warp
This is the Time Warp HS Mage Card from the Journey to Un’Goro expansion due for release in April.
It’s a Mage class spell and the card reads: Take an extra turn.
You can get Open the Waygate by opening packs from the Journey to Un’Goro set.
If you want to know more about how the Quest keyword works check out this post.