Horde Balloon
Quest reward from Blown Away. A magical wonder, these balloons will never deflate and are traditionally created in batches of ninety-nine. Flying type.
The 
Horde Balloon is a Classic companion pet obtained through a quest, inspired by the 80s song 99 Luftballons by Nena, and described as a magical balloon that never deflates and is traditionally created in batches of ninety-nine.
Guide awaiting review
Complete the Quest
Complete the quest "Blown Away" to receive the Horde Balloon as a reward.
Summon Your Balloon
The Horde Balloon is summoned via the Horde Balloon spell in your pet journal.
Upgrade to Rare Quality
If you want to upgrade your Horde Balloon to Rare quality, use a 
Flawless Flying Battle-Stone or a 
Flawless Battle-Stone — this will turn its name blue in your pet journal, though it will still not be able to participate in pet battles.
