And on a more serious note, blizz stated it was a to unbalanced item to have in arena, so they made it unusable in arena and giving it back its 5 sec duration.
OK so engi has nothing to offer for mage in these times for arena right?Trinket sucks,hyperspeed accelerators doesent stack with Icy Veins and trinket, right?And Nitro boots useless.Hmm