Hmm, well I tried looking for some information on grand cross and I will just copy and paste the formula description from [Removed] since it was the one place I could find formula information on the skill.
Do 3 holy element, cross shaped, splash attacks with the area of effect centered on yourself.
Enemies of Undead property and Demon family type will be blinded (but not players). Damage is (100+40*SkillLV)%*(ATK+MATK)*holy_property_fix per hit, where:
- ATK is the damage that you would cause to the monster using a normal (neutral property) attack (Masteries don't cont, weapon cards that increase ATK or STR work but cards that gives % more damage do NOT)
- MATK is the damage that you would cause to the monster using a neutral property spell (and this value CAN BE negative, like when a mob that has higher INT than your MATK, cards/weapons that add additional INT work)
During the cast process your defense will be reduced by 1/3. After casting is finished, you will receive 20% of current HP+([(100+40*SkillLV)%*(ATK+MATK)]/2)*holy_property_fix damage per hit yourself, where:
- ATK is the damage that you would cause to YOURSELF using a normal attack (Thara Frog Card works and decrease damage. The '20% of current HP' rant can NOT be avoided or reduced!)
- MATK is the damage that you would cause to YOURSELF using a neutral property spell
Damage (on yourself) is reduced TWICE - first because of 'half damage to yourself', second because of the Faith skill (that reduces holy damage by half) so players actually get 1/4 damage.
You may not change the equipped shield while you cast this spell. Casting can not be interrupted and the damage ignores size modifications. Do 3 holy element, cross shaped, splash attacks with the area of effect centered on yourself.
Currently both Thara Frog and Faith seem to do nothing to reduce the damage you deal to yourself from the Grand Cross skill. From the picture I linked you can clearly see that I take the same damage with or without a Thara Frog card. Unless [Removed] is wrong and it could be but it seemed to be the only place I could find this much forumla info on the skill, then Grand Cross is currently bugged.
Edited by VModCinnamon, 17 January 2020 - 12:43 AM.
Mod Edit: Removed, RMS.