First of all, those stats a bit nuts! Looks like Point Buy 48, but I would guess that you rolled those stats. Use Point Buy to get characters with stats on a more normal level. But, I guess that's up to you.
What is a Dynamic Hammer??? Is it a tool? With 2d8 damage it is a lot more powerful than I would expect, at least for a Simple Weapon.
Having fun while making mistakes is not something that require a specific build, high stats or powerful weapons. Granted, 2d8 is not that powerful, but that depends a bit on how heavy it is. But a Small character could use a medium weapon in 2 hands, no bigger.