The game already advises you if a fight is beyond what a PC can manage. What else do you need?I'm still not sure how you are making the leap here. "Beyond Deadly" is a way of categorizing the potential outcome of the fight. It doesn't say anything about other potential solutions. For example, you don't adjust the CR of an encounter (which is based entirely upon the relative power of the creature versus the party in combat) because the PCs come up with a clever non-combat solution. "Beyond Deadly" is just a way of saying APL +10 or whatever. it is informative, not prescriptive.