Balance

You bestow on a living creature either a resistance to one type of damage or a weakness to one type of damage. For example, if a creature has a resistance to slashing damage and you give it resistance to slashing damage, for the duration of the spell the creature takes normal slashing damage. Additionally, if a creature has a weakness to a type of damage and you choose to add weakness to that same type of damage, the creature now takes four times the amount of damage from that type. After being affected by this spell, this can not be cast on that creature until you finish a log rest.