Played this deck from D3 to Legend in April and from Bronze to Legend in May.
100% wr vs priests. (~20 games)
Weak vs Highlander Hunter and Bomb Warrior.
Highlander package: Zephrys the Great, Dragonqueen Alexstrasza
Galakrond package: Galakrond, the Tempest, Kronx Dragonhoof, Shield of Galakrond, Corrupt Elementalist, Invocation of Frost, Devoted Maniac, Dragon's Pack
Board clear: Earthquake, Hagatha's Scheme, Plague of Murlocs, Lightning Storm
Healing: Walking Fountain, Witch's Brew
Combo finisher: Doomhammer, Hoard Pillager
Torrent, Hex - strong and effective removals
Serpentshrine Portal, Earth Shock - amazing flexible cards
Lightning Breath - 3 mana Flamestrike. Easy 6 dmg aoe with Bloodmage Thalnos and Wrath of Air Totem
Siamat - good card in any situation
Faceless Corruptor - can be used against either one big minion or two small
Shattered Rumbler - not a bad card. Works for me.
Mana Tide Totem - can draw multiple cards and save 3 hp to your hero
Far Sight - mana cheating, activator for Shattered Rumbler and Torrent
Big Ol' Whelp - good stats, activator for Lightning Breath
Bloodmage Thalnos - all you need in one card.
Other good options:
Acidic Swamp Ooze - good in current meta. But priests can steal it to destroy your Doomhammer
Marshspawn, Cobalt Spellkin - good overall. I didn't find a place for them
Bandersmosh - cool card. I just don't want to craft it
The Lurker Below - could be better than Shattered Rumbler. I just don't want to craft it