Giants are awe-inspiring beings that are larger than life. Unfortunately, many players rarely get to witness such power, much less wield it. A belt of Giant Strength or a potion is about the extent to which you can play as a giant.
The Rune Knight gives a collection of abilities that demonstrate the power of such beings, but it relies on expendable resources that are not always available.
Giant Mad Scientists on the other hand, have changed themselves to be more like a Giant at all times. You might not get a lot of flashy abilities, but your base stats keep you up and allow you to do and get away with all sorts of stuff.
With this build, you go where you please and do what you please, due to your overwhelming power. Water, not a problem. Bridge collapses under you or a trap collapses under you, no problem. You are a giant. You are larger than life, and you will make an impact.
Rise above your enemies.
Brutally strike evil foes that struggle to deal with the weight and power of your blows.
- from the publisher's blurb