You’re not!
There are a few simple ways to make Weapon Throw powerful and viable. In my opinion, the easiest fix is to edit the WT item as follows:
- Weapon Throw pierces
- Jack the damage multiplier through the roof
There are, of course, many other ways to make WT awesome. Perhaps enemies hit by WT take XX% more damage from other sources?
Perhaps WT splits into 3 projectiles on contact, and each pierces and deals XXX% more damage?
Perhaps WT drops Avalanches when it contacts an enemy? Good reason to use Dread Iron!