Pretty simple little exploit here.
1) Load up on a bunch of gear of whatever stat you want to be increased. (Int, Str, Crit, Haste, etc.) Doesn't need to be any good gear, just one with high stat values.
2) Receive Blessing of Kings
3) Switch your gear back to your normal set
When you do all this, after you switch back to the normal set, your stats from kings will be increased (10% of the previous values) and you can have extremely high stat values.