Rise of Shadow legendary quest didnt appear

[anon43486798]

Do you have any of the quests listed in Hearthstone Common Issues:

@Aelathera

Unable to claim a promotional reward?
During an in-game event, there can be free cards or packs awarded for free such as the Golden Witch’s Cauldron or the Golden Fireworks Tech cards. Check your quest log and complete any of the quest mentioned below:

1. (New Players) Win 5 Practice Games, First Blood, and The Duelist.
2. (Returning Players) Return of the Hero, Ready for Action and Back in the Game!

Once you have completed the quests, it will put you into the holiday event. A restart may be required to get the reward to appear.