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Message: <blockquote data-quote="MerricB" data-source="post: 6180849" data-attributes="member: 3586">Getting the DC right of skill checks is quite tricky. You've got the competing problems of making it an appropriate challenge whilst not wanting to make the mathematics too difficult! The typical use of Tumble in my campaigns found the rogue ending up the middle of the monsters - and thus vulnerable to lots of attacks. So, I was absolutely fine with them using it!Personally, if I wanted a scaling DC, I'd use the Challenge Rating of the monster, as that (at least) should scale according to the level of the character. It'd be easy enough to put the DC at 10+CR or 15+CR depending on how difficult you wanted it to be. The additional feats and magic items that players get would allow them to increase their chances of doing it successfully beyond the basic scaling of one skill point per level. The drawback of such a method is that it doesn't allow anything but full commitment to the skill.The trouble with linking it to anything else is that everything else is really inconsistent! I could see an argument to modifying it by the Dex of whatever you're tumbling past, but there are a lot of other potential bonuses that could apply. It can get too much in the middle of the session to remember them all!Pathfinder, as noted, uses a base DC of the Combat Maneuver Defence, which is calculated as 10+Base Attack+Str+Dex+Special Size. If you're interested, you can check the rules on these pages: <a href="http://paizo.com/prd/skills/acrobatics.html" target="_blank">Acrobatics</a> and <a href="http://paizo.com/pathfinderRPG/prd/combat.html" target="_blank">Combat</a>. Personally, I think CMD makes tumbling past monsters far too hard. I've listed some sample DCs below:CR 1: Ghoul (DC 14), Gnoll (DC 13), Troglodyte (DC 11), CR 5: Troll (DC 22), Green Hag (DC 24), Manticore (DC 24), Mummy (DC 23), Bearded Devil (DC 22)CR 10: Clay Golem (DC 30), Fire Giant (DC 31), Rakshasa (DC 29)CR 15: Adult Gold Dragon (DC 40), Neothelid (DC 37), Phoenix (DC 50)CR 20: Balor (DC 54), Ancient Gold Dragon (DC 53), Pit Fiend (DC 53)Cheers!</blockquote>

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