IOS Boneyard Bug
I have found that the cooldowns on secondary spells persist across deaths (I found the bug on Sirmin, not sure about the others). Meaning, if I cast a secondary spell (acid rain in this case) and die immediately afterwards, if I'm fast and I start another game quickly on the same character, then I find that the secondary still is still recharging. If it helps, I am playing on an iPhone 5s. Great update btw! I love the new perks system.