Fuck me I love Evolve. So much value. The RNG is negligible so far. Sometimes you don't get the optimum stats, but a lot of the times you do. And when you suddenly pop a Sorcerer's Apprentice from a totem and you can cast another one it's hilarious. Never hit end turn before seeing what you get from Evolve haha. I am just using stupid shit the summons minions like Bilefin, Imp Master, Fencing Coach, Tuskarr Totemic, Dragonling Mechanic and Feral Spirit and it's rocking faces, at least at rank 13. But I never play ranked. Basically anything that is reasonably cheap and instantly summons another body. Ancestral Knowledge really helps with this type of Shaman and having 2 vanilla stat minions that erase your overloaded mana crystals is fantastic.
I still run 2 Troggs because of x2 Ancestral Knowledge, x2 Feral Spirit, x2 Stormcrack, x1 Lightning Bolt, and x2 Flamewreathed Faceless. Obviously you don't want to evolve the Faceless, but he's the only overload minion that would cause you an evolve problem. A huge bomb turn 6 play is Silver Hand Knight plus Evolve. On an empty board you suddenly have a 6 drop and a 3 drop. Sunwalker + 4/4. And if you have any other minions left over, forget about it. It plays a lot like Secret Paladin, except it's far more dangerous because Evolve is a measly 1 mana and your opponent can't always keep your board clear.
So you have the immediate pressure of the Trogg and then you can easily set up a bomb turn with a big Evolve thanks to all the guys that summon other guys and Fencing Coach helps a lot because you can save it up. And you play Sea Giants so quick and easily. Gormok has also been a champion for me. I've yet to lose to C'thun bombs of up to 16 damage because of all the minions I have on board.