I wanted to test those new cards and especially adrenaline. What i found was that adrenaline is quite useless. Its only good use is taking down bone walls with small 1/1 creatures.
Its script is bit flawed too. creature with 12/2 attacks for 16 damage with it... thats like 1 attack and then 1/3 attack... im not complaining about the extra damage, but for 4 mana and extra spot in deck, its not worth it. Rage potion also seems to suck, unless you are sure you will deliver killer hit after you use it.
my conclusion - perhaps usable in pvp but against fake gods, where durability is required, they are useless.