"Now every Blessing will grant a bonus to HP, ATK, DEF,  DMG, RES, ACC, and SPD, the values remain the same. "

You could simply have made it so that a 2* blessing gave an increase to ATK, DEF, or HP, depending on whether the champion was an ATK, DEF, or HP champion. :)

I take it you aren't a fan of Life Harvest?  I currently have it on both Siphi & Pyhtion for tank v tank fights.

Not sure what Rotos has to do with this conversation?