How would Master of the Wild Hunt be worded if it targeted multiple creatures?
The easiest way to do it is to change the operation slightly. Instead of having each wolf deal damage, have the lord deal damage.


  {T}: Tap all untapped Wolf creatures you control. ~ deals damage equal to the total power of those Wolves divided between up to X target creatures, where X is the number of Wolves tapped in this way. Those creatures deal damage equal to their power divided as their controllers choose among any number of those Wolves.


This would be a functional change, for example you could have a black wolf, like Carion Howler, and your opponent could have Darkwatch Elves, who has protection from black, on the board. Under my change, the damage from the howler could be dealt to the elves. Currently, it couldn't (even though the Master does the targeting, the wolf does the damaging). I think the simplicity of it allows for such a sacrifice.