How does increased reach effect thrown weapons?

[ShroudedInLight]

Let us say I have a character who has buffed themselves up to 15 base reach. If I throw a weapon with 20ft per range increment, do I suffer my first range penalty at 20ft or 35ft?

[Harliquinn Whiteshadow]

Unless you've also grown in size, the range increments for thrown weapons stay the same. If you're bigger in size, the range increment starts at the edge of your space. So if you went from medium to huge, you've gained an additional 5' essentially.

[ShroudedInLight]

So no increases from casting Long arm, but one from going from medium to large, or only medium to huge?

[Harliquinn Whiteshadow]

Technically, a Large creature occupies 2x2 squares, so you could gain an implicit 5' of range if you are attacking someone that is in the opposite corner of where you would have occupied at medium.

At medium:

X- - - -20' range (4 squares away from your square)

At large:

XX- - - - 20' range (5 squares away from your "medium" size starting square)
XX