The Rite of Authority Severance.
The anomalies almost never initiated this ritual because it came at a great cost if one failed to steal the authority.
If it was anomaly A who initiated the ritual and failed to steal the authority of anomaly B, it would be subject to heavy penalties.
As a target, anomaly B wouldn't be faced with penalties even if it failed to steal the authority of anomaly A.
These penalties could range from never being able to initiate the ritual again, never being able to use their ability again, a drop in their realm, a drastic decrease in their energy absorption capability and so on.
Even the weakest penalties consisted of never being able to initiate The Rite of Authority Severance against the same target or not being able to use one's own ability for a certain number of years.
The harshest penalties ranged from immediate death, to intense pain upon the soul of the anomaly every second it lived.