[3.5] Attack of Opportunity vs. 5-Foot Step?

[Unusual Muse]

Is there any way, feat or otherwise, to get an attack of opportunity against someone who leaves a threatened square via a 5-foot step?

[Gotterdammerung]

Thicket of Blades, a stance out of the Tome of Battle, will do this.

[Godskook]

Alternatively, get a large enough threat range that 5' steps are mostly irrelevant. Iirc, PCs can get at least 50' threat ranges(large race, expansion, inhuman reach, spiked chain), thus threatening a 24x24 square region of the battlefield, but that's a fairly specialized build.

[Mystify]

Dragon 340 has exploit adjustment,which allows an attack op if they take 5ft steps from a square adjacent to you to another square adjacent.

[eggs]

Knight 3, Knight of the Raven 5, the Thicket of Blades stance and the Earth Devotion feat (requires Turning to use reliably) are the easiest ways.

EDIT:
Or the above feat. That would definitely cut to the point.

[Person_Man]

As eggs alludes to, you can use the Knight 3 Bulwark of Defense ability or the Earth Devotion Feat (or a wide variety of spells) to create difficult terrain. Movement costs are doubled on difficult terrain, and thus no one can take a 5 ft step through them.

You can also use the humble net (www.dandwiki.com/wiki/SRD:Net) or lasso (Book of Exalted Deeds) or harpoon (Frostburn or Stormwrack). If you hit your enemy and use a trailing rope, your enemy must defeat you on an opposed Strength check or waste an action to attack/remove the net/lasso/harpoon to move away from you. Don't even bother with taking Exotic Weapon Proficiency if you use the net or lasso, as it's a touch attack to hit.

The net is a particularly useful option when combined with Quickdraw (or a magic item that duplicates Quickdraw - there are several). You can make your first few attacks two handed with whatever your primary weapon is, then hold that weapon in other hand (shifting hands is a free action, as clarified in the FAQ) while drawing and attacking with a net with your other hand, Entangling your enemy and holding onto the trailing rope until the start of your next turn.

[mattie_p]

Incidentally, I've been meaning to ask this and here is the perfect opportunity. Does the travel domain granted power render you immune from mundane entanglements such as spider webs or a net? I suspect not, as it states:


For a total time per day of 1 round per cleric level you possess, you can act normally regardless of magical effects that impede movement as if you were affected by the spell freedom of movement.

But what about the freedom of movement spell, which explicitly mentions magical effects as well as grappling, but not lassos, nets or spider webs?

[eggs]

But what about the freedom of movement spell, which explicitly mentions magical effects as well as grappling, but not lassos, nets or spider webs?
Freedom of movement's effect is to allow its subject to "move and attack normally for the duration of the spell" with a variety of examples and specifications (flagged with terms like "such as" or "even"). A subject of the effect can move and attack normally in any scenario that would interfere with that - even ones not explicitly listed in the spell effect. That would include entangling effects.

The Travel domain's ability, in contrast, specifically states that it applies to "magical effects," which do not include non-magical impediments.