target enum name consist of:
TARGET_[OBJECT_TYPE]_[REFERENCE_TYPE(skipped for caster)]_[SELECTION_TYPE(skipped for default)]_[additional specifiers(friendly, BACK_LEFT, etc.]
By themselves
TARGET_UNIT_CASTER = 1
The target is the caster.
TARGET_UNIT_NEARBY_ENEMY = 2
TARGET_UNIT_NEARBY_PARTY = 3
TARGET_UNIT_NEARBY_ALLY = 4
TARGET_UNIT_PET = 5
TARGET_UNIT_TARGET_ENEMY = 6
TARGET_UNIT_SRC_AREA_ENTRY = 7
TARGET_UNIT_DEST_AREA_ENTRY = 8
TARGET_DEST_HOME = 9
TARGET_UNIT_SRC_AREA_UNK_11 = 11
TARGET_UNIT_SRC_AREA_ENEMY = 15
TARGET_UNIT_DEST_AREA_ENEMY = 16
TARGET_DEST_DB = 17
TARGET_DEST_CASTER = 18
TARGET_UNIT_CASTER_AREA_PARTY = 20
TARGET_UNIT_TARGET_ALLY = 21
TARGET_SRC_CASTER = 22
TARGET_GAMEOBJECT_TARGET = 23
TARGET_UNIT_CONE_ENEMY_24 = 24
TARGET_UNIT_TARGET_ANY = 25
TARGET_GAMEOBJECT_ITEM_TARGET = 26
TARGET_UNIT_MASTER = 27
TARGET_DEST_DYNOBJ_ENEMY = 28
TARGET_DEST_DYNOBJ_ALLY = 29
TARGET_UNIT_SRC_AREA_ALLY = 30
TARGET_UNIT_DEST_AREA_ALLY = 31
TARGET_DEST_CASTER_SUMMON = 32
TARGET_UNIT_SRC_AREA_PARTY = 33
TARGET_UNIT_DEST_AREA_PARTY = 34
TARGET_UNIT_TARGET_PARTY = 35
TARGET_DEST_CASTER_UNK_36 = 36
TARGET_UNIT_LASTTARGET_AREA_PARTY = 37
TARGET_UNIT_NEARBY_ENTRY = 38
TARGET_DEST_CASTER_FISHING = 39
TARGET_GAMEOBJECT_NEARBY_ENTRY = 40
TARGET_DEST_CASTER_FRONT_RIGHT = 41
TARGET_DEST_CASTER_BACK_RIGHT = 42
TARGET_DEST_CASTER_BACK_LEFT = 43
TARGET_DEST_CASTER_FRONT_LEFT = 44
TARGET_UNIT_TARGET_CHAINHEAL_ALLY = 45
TARGET_DEST_NEARBY_ENTRY = 46
TARGET_DEST_CASTER_FRONT = 47
TARGET_DEST_CASTER_BACK = 48
TARGET_DEST_CASTER_RIGHT = 49
TARGET_DEST_CASTER_LEFT = 50
TARGET_GAMEOBJECT_SRC_AREA = 51
TARGET_GAMEOBJECT_DEST_AREA = 52
TARGET_DEST_TARGET_ENEMY = 53
TARGET_UNIT_CONE_ENEMY_54 = 54
TARGET_DEST_CASTER_FRONT_LEAP = 55
TARGET_UNIT_CASTER_AREA_RAID = 56
TARGET_UNIT_TARGET_RAID = 57
TARGET_UNIT_NEARBY_RAID = 58
TARGET_UNIT_CONE_ALLY = 59
TARGET_UNIT_CONE_ENTRY = 60
TARGET_UNIT_TARGET_AREA_RAID_CLASS = 61
TARGET_UNK_62 = 62
TARGET_DEST_TARGET_ANY = 63
TARGET_DEST_TARGET_FRONT = 64
TARGET_DEST_TARGET_BACK = 65
TARGET_DEST_TARGET_RIGHT = 66
TARGET_DEST_TARGET_LEFT = 67
TARGET_DEST_TARGET_FRONT_RIGHT = 68
TARGET_DEST_TARGET_BACK_RIGHT = 69
TARGET_DEST_TARGET_BACK_LEFT = 70
TARGET_DEST_TARGET_FRONT_LEFT = 71
TARGET_DEST_CASTER_RANDOM = 72
TARGET_DEST_CASTER_RADIUS = 73
TARGET_DEST_TARGET_RANDOM = 74
TARGET_DEST_TARGET_RADIUS = 75
TARGET_DEST_CHANNEL_TARGET = 76
TARGET_UNIT_CHANNEL_TARGET = 77
TARGET_DEST_DEST_FRONT = 78
TARGET_DEST_DEST_BACK = 79
TARGET_DEST_DEST_RIGHT = 80
TARGET_DEST_DEST_LEFT = 81
TARGET_DEST_DEST_FRONT_RIGHT = 82
TARGET_DEST_DEST_BACK_RIGHT = 83
TARGET_DEST_DEST_BACK_LEFT = 84
TARGET_DEST_DEST_FRONT_LEFT = 85
TARGET_DEST_DEST_RANDOM = 86
TARGET_DEST_DEST = 87
TARGET_DEST_DYNOBJ_NONE = 88
TARGET_DEST_TRAJ = 89
TARGET_UNIT_TARGET_MINIPET = 90
TARGET_DEST_DEST_RADIUS = 91
TARGET_UNIT_SUMMONER = 92
TARGET_CORPSE_SRC_AREA_ENEMY = 93
TARGET_UNIT_VEHICLE = 94
TARGET_UNIT_TARGET_PASSENGER = 95
TARGET_UNIT_PASSENGER_0 = 96
TARGET_UNIT_PASSENGER_1 = 97
TARGET_UNIT_PASSENGER_2 = 98
TARGET_UNIT_PASSENGER_3 = 99
TARGET_UNIT_PASSENGER_4 = 100
TARGET_UNIT_PASSENGER_5 = 101
TARGET_UNIT_PASSENGER_6 = 102
TARGET_UNIT_PASSENGER_7 = 103
TARGET_UNIT_CONE_ENEMY_104 = 104
TARGET_UNIT_UNK_105 = 105
TARGET_DEST_CHANNEL_CASTER = 106
TARGET_UNK_DEST_AREA_UNK_107 = 107
TARGET_GAMEOBJECT_CONE = 108
TARGET_DEST_UNK_110 = 110
In combo
TARGET_SRC_CASTER, TARGET_UNIT_SRC_AREA_ENTRY (22, 7)
caster is the source of an aoe, area entry means it targets everything, using condition source type implicit targets you can limit the amount of things it targets, area entry without conditions targets ALL
TARGET_DEST_CASTER_LEFT, TARGET_DEST_DYNOBJ_ENEMY (50, 28)
target a dynamicObject aura object to the left of caster, <range> yds to the left precisely