SetBlockBelow:
  TargetConditions:
  - blocktype air
  Conditions:
  - inblock water
  Skills:
  - equip{i=oak_planks:5}
  - setblock{type=oak_planks;md=0} @forward{f=0;y=-0.1}
  - skill{s=SetBlock1Below} @forward{f=0;y=-1}
SetBlock1Below:
  TargetConditions:
  - blocktype water
  Skills:
  - setblock{type=oak_planks;md=0}