Easy to play but relatively hard to execute/master. Came up with this deck myself and it got me to platinum easy. Got few downsides as it is based on Ephemeral unit summoning but if played correctly will push your enemy in to the corner very quickly.
First objective:
Summon Shark Chariot as soon as you can, you can even to that via defending turn, just make sure you have Ephemeral units for your attack. Great early game trick is to use Fading Memories to multiply your Sharks.
Second objective:
Make sure you have Phantom Prankster or Soul Shepherd to amp your ephemeral units
Zed & Hecarim:
Use them in attack to summon more ephemeral units including sharks. Having Phantom prankster will quickly lower opponents health. Having Soul Shepherd will help you deal way more damage and most of the time kill all enemy units.
Phantom prankster:
Use Haunted Relic and Evershade Stalkers to summon infinite amount of Ephemeral units. After death they will deal 1dmg, so you can do that even in defense turn and still deal 5 damage without attacking. Also if you have a Field Musicians on the table it will be much easier to summon more Stalkers.
Trick & outplay potential:
Always use Death mark on your ephemeral units to kill your opponent's Champions or other powerful units
Other spells:
All others spells are used to protect your Zed & Heca from getting slayed. Don't forget that Shadowshift will also summon an Ephemeral shadow
Try it couple of times and you will see the potential of this deck. I just hope not to get versed against you as this is very obnoxious deck to play against. Have fun!
2.78
Shard Cost: 
27,000
18
22
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