Repelled
A repelled creature has disadvantage on opposed rolls (including attack rolls) against the target of their repulsion. They are also Slowed 1 but only when attempting to move towards the target of their repulsion, and must make a saving throw at the start of their turn every round at the start of their turn.
Unless noted otherwise, the save is a Will save (DC10 + target's level + target's Cha mod) if the effect is emotion, fear, linguistic, mental, or social effect, but otherwise it's Fortitude or possibly even an Athletics or Brawn roll to avoid being pushed (DC10 + target's level + target's Str mod).
Critical Success: You are Staggered 1 for 1 round and shift 5 feet* away from the target of your repulsion.
Success: You are Staggered 2 for 1 round and shift 15 feet* away from the target of your repulsion.
Failure: You are Staggered 2 for 1 round and move 30 feet* away from the target of your repulsion.
Critical Failure: You are Staggered 3 for 1 round and move 60 feet* away from the target of your repulsion.
*If the effect is a mental or emotion effect, this distance cannot exceed your base speed or twice your base speed on a Critical Failure.
Stage 2: As stage 1 but Slowed 2 and Staggered 1 against the target of their repulsion.
Stage 3: As stage 1 but Off-Guard, Slowed 3, and Staggered 1 against the target of their repulsion.
Stage 4: As stage 1 but Helpless, Off-Guard, Slowed 4, and Staggered 1 against the target of their repulsion.