Omagatoki: Critical grants all allies the effect of having their next individual attacks be guaranteed Critical hits, regardless if they're physical or magical. Resistances do not block Critical hits if they're enhances by Omagatoki: Critical, meaning the attack will resist and land a Critical simultaneously. The Critical hits cannot land a critical on attributes a demon nulls. However, Guarding still blocks Critical hits, and repelled attacks, such as from resistances and shields, still cannot land Criticals back on the attacker.
The effect lasts until the end of the faction's turn. The Magatsuhi gauge needs to be full and used up to execute the skill. As it's a Magatsuhi skill, no icons are used, and the turn isn't passed to the next demon.
Omagatoki: Critical does not prevent the effects of Critical Aura from being used up should the circumstances of the attack match with the requirements of the latter.
Enemies may use Omagatoki: Critical as well, but it costs their entire turn to do so, instantly switching to the player turn. The properties of the enemy's Omagatoki: Critical apply to activated Counter or Retaliate skills, but like normal, these skills do not influence their icons.