4
\$\begingroup\$

Iron rope is a magical rope that, upon saying the command word, turns into solid iron (with no chain links). Thus, I have been trying to find an accurate break DC and Escape Artist check for breaking out of 1 inch iron bonds for when I entangle a creature using Animate Rope. The hardness and the Hit Points were easy enough, but I was having a hard time finding the DCs. I found bloodvine rope which was a break DC of 30 so I assumed it should be higher than that as it is just a vine with some alchemical treatments vs solid iron.

\$\endgroup\$
6
\$\begingroup\$

The Iron Bands of Binding have a Break DC of 30, as well as an Escape Artist DC of 30. Your Iron Rope is probably the same or a little worse.

If it were up to me, I would use the same Escape Artist DC that the rope had before it was frozen and add +2 to it, rather than a straight 30. Especially if someone was tied up with the rope before it was frozen.

\$\endgroup\$
  • 2
    \$\begingroup\$ Most of the ways of getting out of rope bindings involve deforming the rope in some manner (e.g. untie, cut, wiggling such that one loop gets longer allowing you to slide a hand out, etc.). The vast majority of such manipulations become impossible, or much, much harder once the Iron Rope is changed to iron. Depending on what the DC was for the rope, as rope, I would think a difference of significantly more than just +2 would be appropriate. \$\endgroup\$ – Makyen Sep 11 '16 at 6:42
  • \$\begingroup\$ My problem with this answer is that we are comparing a 750gp item with another that costs 26,000gp. And we got a DC for iron bars. \$\endgroup\$ – ShadowKras Sep 12 '16 at 11:43
  • \$\begingroup\$ @ShadowKras The Iron Bands of Binding are reusable, and without Animate Rope, the Iron Rope isn't usable in combat, and Animate Rope also requires a save while the Iron Bands do not. \$\endgroup\$ – Captain Ford Sep 13 '16 at 1:56
  • \$\begingroup\$ @Makyen I agree. But my reasoning is that this allows you to improve on the Tie Up DCs, which is normally not possible, even with chains. (Unless I'm missing something) \$\endgroup\$ – Captain Ford Sep 13 '16 at 1:58
  • \$\begingroup\$ Even if we cut the price by 10 by being usable only once, it is still more than triple the price. \$\endgroup\$ – ShadowKras Sep 13 '16 at 11:29
6
\$\begingroup\$

There's no defined rule...

Iron Rope says that the resulting iron

has the hardness and hit points of a normal inch-thick iron bar...

which has no listed break DC, though it does have a bend DC of 24, here.

Making it up

Other similar items that have break DCs include manacles, chains and a 2 inch thick iron door.

Each of those DCs is from 26 to 28. The iron bar should be similar.

Issues

The entangled condition is what the animate rope spell causes, and the animate rope spell says

An entangled creature can slip free with a DC 20 Escape Artist check.

So even though the rope is iron and inflexible, it can be escaped, by the rules presented.

This DM might rule that the inflexibility of the rope-turned-iron-coil imparts the grappled condition, preventing movement. Escaping may or may not be any more difficult than escaping the animated rope.

\$\endgroup\$
-2
\$\begingroup\$

In the table, Substance Hardness and hit points, an item made out of iron or steel has 10 hardness and 30 hit points per inch of thickness.

The description for iron rope also states:

When the end of this gray hemp rope is held and the command word is uttered, it is irrevocably transmuted into solid iron. The transmuted rope loses all magic and has the hardness and hit points of a normal inch-thick iron bar.

So once the command word is uttered the hemp rope turns into an iron rope. Gains 10 hardness, and 30 hit points.

Normal rope happens to be 0 Hardness, 2 hit points on the table Object Hardness and hit points. If we compare the new hardness and hit points to other objects on that table, we get a break DC at around the same level as Masterwork Manacles, which has a Break DC of 28, 10 hardness, and 10 hit points.

There's also a bit of information further down on the same page that mentions the DC to Burst chain bonds is 26.

So assuming that the iron rope has the properties of a chain or manacles, the break DC would be somewhere around 26-28.

\$\endgroup\$
  • 2
    \$\begingroup\$ My issue with assuming that the break dc is similar to chains or manacles is that both of these have chain links of iron that are a lot less thick then 1 inch of iron as well as having 1/3 the amount of hp or 1/6 the amount of hp an iron bar does. \$\endgroup\$ – Sikag Worldwander Sep 10 '16 at 20:48
  • \$\begingroup\$ Manacles are half an inch thick and normally made of steel, with a lock included. Chains are about the same but linked together in a way that allows them some give while still retaining their strength. Chains are the most similar to an "Iron rope" by description. Ropes normally have interwoven fibers that when pulled tighten the weaving against one another to create a strong resisting force. The force required to brute-force your way out of and break chains would be similar to a rope woven of the same material. Especially when you consider that the break DC of just regular hemp rope is 23. \$\endgroup\$ – Sandwich Sep 10 '16 at 21:21
  • \$\begingroup\$ The force required to break chain links and to break woven iron cable is very different. \$\endgroup\$ – SevenSidedDie Sep 11 '16 at 16:20
  • \$\begingroup\$ It's high enough so that most things with less than 30 strength couldn't hope to accomplish it, yeah. \$\endgroup\$ – Sandwich Sep 11 '16 at 16:47

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.