Zoatebix said:
I don't have my book in front of me right now, but I don't think the CR - EL relationship chart is any different between the two works.
And they wouldn't be. EL is a relationship between CR. As a function, it will create meaningful output, given equivalent input.
So does this mean that encounters with monsters are going to be more difficult than encounters with characters across the board (since monsters have had their total CR reduced without making them weaker)?
No; I spend my time asking myself why UK accept CRs that are too high.
Especially when the 2/3 is such an easy fix. It's certainly easier to apply at the end that, say, taking a CR factor that UK values at 0.1 CR and changing it to 0.06666666666 CR, and doing this for every factor across the entire process.
If you churn a core monster through the Creature Creator in Chapter 13, and you apply the 2/3 rule, you get a pretty damn close approximation of the core CR. (I've done it many times, enough to be satisfied that, on the whole, UK is a pretty clever fellow.)
The problem with NOT having a single standard arises because of the assumption that 1 Character Level = 1 CR. There is no way that this can be constant in both systems if CRs are not constant in both systems.
Consider a creature that is CR10 in core, CR15 in UK.
Compare it to a party of 10th level characters.
In the Core system, the characters are CR10 each, which means that the CR10 creature is moderate. (This matches with what we know, understand, and accept from the core rules.)
In UK's system, the EXACT SAME CREATURE is rated CR15. Yet the party is still composed of CR10 characters; the party is the same. Suddenly the monster is more difficult? Such a system only makes sense if, instead of 1 CL = 1 CR, UKs system proposed 2 CL = 3 CR.
Grim Tales adopts the 2/3 rule to keep all expectations and outcomes as close as possible to core.
Wulf