ep3_greek_fire_crit_fail_effect

ep3_greek_fire_crit_fail_effect = {
	scope:invading_commander ?= {
		add_character_modifier = {
			modifier = assaulted_by_greek_fire_modifier
			years = 1
		}
	}
	scope:army = {
		deplete_army_by_percentage = 0.1
	}
	scope:invader ?= {
		custom_tooltip = two_knights_wounded_tooltip
		hidden_effect = {
			scope:knight_1 ?= {
				increase_wounds_effect = { REASON = greek_fire }
			}
			scope:knight_2 ?= {
				increase_wounds_effect = { REASON = greek_fire }
			}
		}
	}

	root.capital_county = {
		add_county_modifier = {
			modifier = defenders_immolated_modifier
			years = 10
		}
	}
	#You lose the greek fire fleet modifier
	title:c_byzantion = {
		remove_county_modifier = defensive_fire_dromons_modifier
	}
}

As written in game/common/scripted_effects/07_dlc_ep3_scripted_effects.txt.