So I decided to revive this neat little thread. 
Here are my last two trial decks. I got 10 wins with both and neither included any dominion.
Part 1 N/W Ka'ainu
Here's the deck list for those that don't speak german:
creatures (23)
1x Forcewielder
2x Frost Elemental
1x Lightning Elemental
1x Militant Automaton
1x Library Guards
1x Sunborn Subordinate
1x Spectral Aurite
1x Elf Scout
1x Silverfang
1x Electric Aurite
2x Gurko Tribe Shaman
1x Ambushing Sharpshooter
1x Venerated Unicorn
2x Brothers in Arms
1x Empress of the Forest
1x Elf Commander
1x Ancient Treant
1x Lifeforce Incarnate
1x Sunchaser Aurite
1x Melindra, Spirit Guide
spells (6)
2x Power Discharge
1x Flashfreeze
1x Ancient Wisdom
1x Forcefield
1x Tornado Outbrake
shrines (17)
8x Nature Shrine
8x Wisdom Shrine
1x Ancient Ruins
This list is pretty light on spells so not falling behind early was very important. Ka'ainu is an incredible hero for trials with pretty much any 3 cost creature because 4 HP creatures can be very hard to handle in general. The Frost Elementals did a surprising amount of work in combination with Flashfreeze and Power Discharge or just the Elf Scout and weren't half bad just as 2/4s when hero powered out.
Overall the games were all about patience and resource management. In most games I bided my time, not attacking altogether, if the trades I would've gotten wouldn't have been efficient enough. Instead I waited and played it safe until I got that one card (e.g. Outbrake or Power Discharge) that allowed me to swing the board in my favour.
The one Unicorn really saved my ass in a couple of games, removing key Enslaves or in the last game a Mantle of Winds from a triple shielded Spectral Aurite which allowed me to swing for leathal with my Sunchaser through a huge board of 7 or 8 creatures on both sides.
I didn't play Forcefield in all but 2 games. Most of the time the tempo loss is just to huge, but in those two games it rendered the enemy's goblins (in the first) or golem spam (in the second of those games) practically useless and pretty much singlehandedly won me those games.
