This deck stomps.
Played 20 games at rank 7 with it and I've won 17, no exaggerating. I'm on the road playing mobile so I don't have my tracker data but trust me, this deck is busted. If you get Embiggen and a pirate in your opening hand you pretty much win. For example:
Embiggen + Southsea Deckhand = 5/4
Embiggen + Southsea Deckhand + Parachute Brigand in hand = 7/6
Echoing Ooze (3 Mana 6/8)
Patches (Free 3/3)
Parachute Brigand (summons from hand as a free 4/4)
Leeroy Jenkins (6 Mana 8 attack charge is pretty nice)
Build a board (very easy), buff it, sustain it with Soul of the forest, find lethal through buffs, Savage Roar, and Leeroy. Easy peasy.
Let me know what you guys think or what ideas you have to improve the deck! Have fun :)