I am playing a character who will be undergoing size changes on a regular basis. I am interested in an effect which will make my primary weapon (in this case a bow) always be the correct size that I am currently (in case I end up dropping it while in a size different than natural).

I assume that this kind of ability makes the most sense as a weapon property. As much as I would like it to be a cost based ability like adaptive, but should most likely be an enhancement bonus since thats what most weapon properties are. Since keen is a +1 ability, I feel that this ability would be in-line in terms of power.

Would having adaptive size as a +1 weapon enhancement be balanced/fair? Or is it actually something that exists in Pathfinder already?

While researching this I discovered that there is a sizing weapon property in 3.5 which was a +1 bonus. Only it took a standard action for it to change size.

  • \$\begingroup\$ Why do you plan to be dropping your bow? Are you worried about getting disarmed, or are you expecting to drop it intentionally (eg, to use a sword instead)? \$\endgroup\$
    – Dan B
    Commented Apr 4, 2016 at 5:05
  • \$\begingroup\$ I expect at some point to be disarmed \$\endgroup\$
    – Fering
    Commented Apr 4, 2016 at 5:26
  • 1
    \$\begingroup\$ How will your character be changing size? This is an important detail that is needed to answer the question well. For example, reduce/enlarge person both change your weapon size with you. \$\endgroup\$ Commented Apr 4, 2016 at 13:44
  • \$\begingroup\$ The common way, with enlarge and reduce person. Thats why the weapon could be the wrong shape if I pick it up after or have dropped it. \$\endgroup\$
    – Fering
    Commented Apr 4, 2016 at 23:17

1 Answer 1


The Giant Hunter's Handbook (Jan. 2015) includes the magic weapon special ability resizing (4,000 gp; 0 lbs.) that says

A resizing weapon instantly shrinks or grows to suit the size of any creature that picks it up unless it is currently wielded by another creature. It reverts to its original size 1 round after it leaves its wielder’s possession.

From what I can gather, the weapon special ability isn't limited to melee weapons. As a relatively new release, the Handbook's information is likely still being readied for inclusion on d20PFSRD.

  • \$\begingroup\$ I do not have this source material so thank you for bringing it to my attention \$\endgroup\$
    – Fering
    Commented Apr 4, 2016 at 5:27

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