3 methods to read the result of a 6- or 20-sided die.
-Vector comparison
-Line Trace
-Predetermined kinematic simulation and material
https://dev.epicgames.com/community/learning/tutorials/PWZjL/unreal-engine-how-to-read-the-result-of-a-die-roll-6-or-20-sided-vector-analysis-line-trace-simulation-and-kinematics-blueprint-ue-5-8-65-minutes