If you’re wondering how to get HS card Moonglade Portal – you have to complete the Druid Class Challenge in The Spire, the fourth wing in the adventure One Night in Karazhan.
There are two class challenges as part of The Spire. Druid, and Rogue.
The Druid Challenge puts you in with the boss – Netherspite.
Hearthstone Card Moonglade Portal
The card reads: Restore 6 Health. Summon a random 6-Cost minion.
Druid’s edition in the portal series of cards. It heals as you’d expect from Druid, and summons a random 6-cost minion which gives you the chance for some pretty decent minions.