Effect damage

Effect damage is any damage that is not caused in battle, or is a cost (The only exception to this rule is Gravekeeper's Vassal, who's effect makes it so any battle damage caused is treated as effect damage instead). Effect damage can be caused by almost any type of card. Examples of cards that cause effect damage are Poison Mummy, Ookazi, and Ceasefire. Examples of costs that are not effect damage are: Injection Fairy Lily, Premature Burial, and Dark Deal. Key words to look out for in effect damage are "Inflict" and "Direct Damage". If it says "Pay" (or any form of pay) it is a cost.