Desert Trial may seem to only feature an Epic Rank Hero, but do not disregard her importance for the rest of the game! This bi-weekly event is your best friend until gen4, where it gets replaced by Champion’s Way 

During this 3 day event, you can acquire [Clawshards] and [Challenger Pouches] from hunting beasts. Using these Clawshards is how you complete the mission of this event, to Hunt 10 Dreadwolves [Note: You have to Initiate 10 Rallies, joining will not suffice for this mission]

After hunting 10 Dreadwolves, you will be awarded 10 Diana Shards. Diana is the Featured Hero, and offers the following utility skills;

• Reduced Stamina usage for hunting and starting rallies
• Increased Marching Speed for hunting and rallies

You will also receive Diana shards and additional rewards for initiating a rally against a dreadwolf, as well as a chance for diana shards and other rewards when joining a dreadwolf rally.

Clawshards:

You can exchange them for Challenger pouches on the event page when you have her 5 Star, but since the event only exists until Gen4, I would advise to keep them! They can be used to 5 star Diana, and then continually used (when you have excess stamina) to hunt for more shards outside the event for Champagne Tickets! (up to 500 Diana Shards can be redeemed per event).

Challenger Pouch:

Can contain the following:

– 20% for 100 gems
– 50% for 10–30 gems
– 15% for 1 Governor Stamina
– 100% for 5–10m General Speedup
– 100% for 1,000 Hero XP