I have been running grim lavamancers over the bolts in my build.
-pros
can multiple target over many turns
get rid of weldres and workers plus wennies
works under standstill
-cons
creature
a weak creature
can only do 2 dmg
it my preference unless this has already been covered i think it would be a valuable addition to the deck,even though it does dies to almost all forms of removal just my thoughts.