Someone said he read somewhere on this site, that if the creature can't run away (dash safely) then there is no effect and they can then move up and lash out at the caster as they would normally.
Yet the rules clearly state that under the Frightened condition:
- A frightened creature has disadvantage on ability checks and attack rolls while the source of its fear is within line of sight.
- The creature can't willingly move closer to the source of its fear.
So, am I correct in assuming that even if they can't run away, they cannot move toward the caster, and if they happen to somehow be in a position to actually attack the caster, it is only with Disadvantage?