steal_herd_success_effect

steal_herd_success_effect = {
	if = {
		limit = {
			scope:target = {
				exists = domicile
				domicile.herd > 0
			}
			scope:owner = { exists = domicile }
		}
		scope:target = {
			if = {
				limit = {
					scope:owner = {
						OR = {
							is_vassal_of = scope:target
							is_liege_or_above_of = scope:target
						}
					}
				}
				add_opinion = {
					target = scope:owner
					modifier = stole_my_herd_crime
				}
			}
			else = {
				add_opinion = {
					target = scope:owner
					modifier = stole_my_herd
				}
			}
			if = {
				limit = {
					is_independent_ruler = no
					liege = {
						NOT = { target_is_same_character_or_above = scope:owner }
					}
				}
				liege = {
					add_opinion = {
						target = scope:owner
						modifier = stole_vassals_herd
					}
				}
			}
			custom_tooltip = {
				text = steal_herd_vassal_tt
				every_powerful_vassal = {
					limit = { 
						NOR = { 
							this = scope:target
							this = scope:owner
						} 
					}
					add_opinion = {
						target = scope:owner
						modifier = stole_lieges_herd
					}
				}
			}
		}
		scope:owner = {
			if = {
				limit = {
				   scope:scheme = { exists = var:steal_herd_low }
				}
				if = {
					limit = {
						has_character_flag = steal_herd_extra
					}
					scope:target = {
						pay_herd = {
							target = scope:owner
							value = {
								value = domicile.ten_percent_current_herd_value
								max = scope:owner.domicile.fifty_percent_current_herd_value
							}
						}
					}
				}
				else = {
					scope:target = {
						pay_herd = {
							target = scope:owner
							value = {
								value = domicile.five_percent_current_herd_value
								max = scope:owner.domicile.fifty_percent_current_herd_value
							}
						}
					}
				}
			}
			else_if = {
				limit = {
					scope:scheme = { exists = var:steal_herd_normal }
				}
				if = {
					limit = {
						has_character_flag = steal_herd_extra
					}
					scope:target = {
						pay_herd = {
							target = scope:owner
							value = {
								value = domicile.fifteen_percent_current_herd_value
								max = scope:owner.domicile.fifty_percent_current_herd_value
							}
						}
					}
				}
				else = {
					scope:target = {
						pay_herd = {
							target = scope:owner
							value = {
								value = domicile.ten_percent_current_herd_value
								max = scope:owner.domicile.fifty_percent_current_herd_value
							}
						}
					}
				}

As written in game/common/scripted_effects/00_scheme_scripted_effects.txt.