The greataxe (is that her name?), because I feel very Gimli with her.

I suppose this is more of a “what’s my favorite weapon enchantment” answer, but:

The Spirit Bow with the Projection enchantment; you can shoot through walls, doors, and enemies, so you can:

• get a head start on defeating enemies before they even get to you;
• defeat enchanted statues without having to do battle;
• use one enemy as a shield to defeat another (e.g., shoot past a snake to defeat the crab behind it)
• Defeat larger or shoot-and-run enemies on the other side of a doorway, while they can’t get to you.

In ARranged PD, it would have to be the Eldritch enchantment that makes enemies turn tail and run.

Mage staff. Clearing an entire room with a couple of zaps is satisfying af