Critical rate

Critical rate (Crt) is a calculated stat in Fire Emblem: Redemption which determines how likely a unit is to land a critical hit when attacking. A critical hit deals triple damage (except in the case of the user equipping one of various weapons which affect critical damage, such as the Killer Sword). The Battle Forecast tells the player what their final critical rate will be when attacking. Staves do not have a critical rate. A high Prt will reduce enemy critical rates, resulting in lower chances of your units getting greatly damaged by rare critical attacks.

Each unit also has their own Crt value which can be viewed in their stats page. This value is equal to the unit's Luk*0.5 + their Dex*0.25 + the Crt of their equipped weapon. It does not take skills into account.

Note that a high Crt will increase the chances of any successful attack becoming a critical hit, but if the attacker's Hit is too low, the high Crt value will not increase the chances of landing a hit.