Sizeshifter has these relationships to other tropes:

parents kids shares a parent with:
Shape Shifting
Voluntary Shapeshifting
parent child
Shape ShiftingDual Age Modes
''Older Alter Ego
''Involuntary Shapeshifter
''Our Werebeasts Are Different
''Skin Walker
''Swiss Army Hero
''Voluntary Shapeshifting
''Painful Transformation
''Shape Shifter Mashup
ShapeshiftingPartial Transformation
Voluntary ShapeshiftingRubber Man
''Size Shifter
''Super Smoke
You'll need to Get Known if you want to add or modify these relationships.