From what I'm guessing of the Ruin III change it will replace Ruin and be about the same MP cost, and the Dreadwym Trance boost is not instant cast over reduced MP cost. It's the Ruin IV change I'm not a fan of. instead of another out right change it's still going to be effected by the whole further Ruin buff but only on Ruin II. Personally I feel that Ruin II and Ruin IV need to become AoEs. But I will say the Tri-Bind buff is nice making it and AoE filler skill during DWT. But still I feel there were and are other avenues they can take to fix SMN more.