Twelve Trials: Part 3 Done Quick with a Nature Nation!
Any nation should be able to do it in this amount of speed with my hints
What you need:
2x Full Flying Troop @ level 10 (I used a Green and a Great Dragon)
1x DR Debuff @ level max (I used Nature's Tempest)
1x Let Fly! @ level any [Optional]
1x Swifty McLoot [Optional]
Walkthrough:
Deploy all of the above.
Loose + Charge your units to stop over the small lake.
Pull the "Boar" to the edge of lake if needed as he may stop running towards your units once they go over the lake.
Hit the boar with the debuff, switch your units to aggressive and cast Let Fly
When the boar dies cast Swifty next to the loot and grab it.
Leave via the portal.
NOTE: The Boar will ALWAYS cast a stun TWICE on your units. The first time at 50% HP and the second at 5% HP.
NOTE2: "of Destruction" items can drop from the Boar!
It can be done quicker, of course, but I also provided a walkthrough for people that want to try and do it quick and dont have thousands of dollars of cards