I put the following into the "entity_default" at the bottom:
[ENTITY:MEGA_BEAST]
[CREATURE:COLOSSUS_BRONZE]
[INDIV_CONTROLLABLE]
but as if that wasn't bad enough, I also went to "creature_standard" and overwrote the bronze colossus entry with the following:
[CREATURE:COLOSSUS_BRONZE]
[DESCRIPTION:A gigantic magic statue made of bronze and bent on mayhem.]
[NAME:bronze colossus:bronze colossuses:bronze colossus]
[CASTE_NAME:bronze colossus:bronze colossuses:bronze colossus]
[CREATURE_TILE:'C'][COLOR:6:0:0]
[MEGABEAST][DIFFICULTY:15] 11 or higher does not get assigned as adv mode quests
[ATTACK_TRIGGER:80:10000:100000]
[FANCIFUL]
[NOPAIN][EXTRAVISION][NOBREATHE][NOSTUN][NONAUSEA][NOEMOTION]
[CAN_LEARN][CAN_SPEAK][NOEXERT][TRANCES][WEBIMMUNE][NOSTUCKINS][PARALYZEIMMUNE]
[NO_DIZZINESS]
[NO_FEVERS]
[FIREIMMUNE_SUPER]
[CAN_DO_INTERACTION:MATERIAL_EMISSION]
[CDI:ADV_NAME:Breath fire]
[CDI:USAGE_HINT:ATTACK]
[CDI:BP_REQUIRED:BY_CATEGORY:MOUTH]
[CDI:FLOW:DRAGONFIRE]
[CDI:TARGET:C:LINE_OF_SIGHT]
[CDI:TARGET_RANGE:C:15]
[CDI:MAX_TARGET_NUMBER:C:1]
[CDI:WAIT_PERIOD:50]
[FLIER]
[BUILDINGDESTROYER:2]
[LARGE_PREDATOR]
[NO_DRINK][NO_EAT][NO_SLEEP]
[SPHERE:METALS]
[SPHERE:STRENGTH]
[SPHERE:WAR]
[NOT_LIVING]
[CANOPENDOORS]
[NOT_BUTCHERABLE]
[BIOME:ANY_LAND]
[EQUIPS]
[NOFEAR]
[PREFSTRING:height]
[NOBONES]
[BODY:NEUTRAL:HUMANOID:2WINGS:2EYES:2EARS:NOSE:HUMANOID_JOINTS:5FINGERS:5TOES]
[NO_THOUGHT_CENTER_FOR_MOVEMENT]
[TISSUE:ADAMANTINE]
[TISSUE_NAME:adamantine:adamantine]
[TISSUE_MATERIAL:INORGANIC:ADAMANTINE]
[MUSCULAR]
[HEALING_RATE:1]
[FUNCTIONAL]
[STRUCTURAL]
[RELATIVE_THICKNESS:1]
[CONNECTS]
[TISSUE_SHAPE:LAYER]
[TISSUE_LAYER:BY_CATEGORY:ALL:ADAMANTINE]
[BODY_SIZE:0:0:20000000]
[BODY_APPEARANCE_MODIFIER:HEIGHT:90:95:98:100:102:105:110]
[BODY_APPEARANCE_MODIFIER:BROADNESS:90:95:98:100:102:105:110]
[ATTACK:PUNCH:BODYPART:BY_TYPE:GRASP]
[ATTACK_SKILL:GRASP_STRIKE]
[ATTACK_VERB:punch:punches]
[ATTACK_CONTACT_PERC:100]
[ATTACK_FLAG_WITH]
[ATTACK_PRIORITY:MAIN]
[ATTACK:KICK:BODYPART:BY_TYPE:STANCE]
[ATTACK_SKILL:STANCE_STRIKE]
[ATTACK_VERB:kick:kicks]
[ATTACK_CONTACT_PERC:100]
[ATTACK_FLAG_WITH]
[ATTACK_PRIORITY:SECOND]
[ITEMCORPSE:STATUE:NO_SUBTYPE:INORGANIC:BRONZE]
[ITEMCORPSE_QUALITY:5]
[DIURNAL]
[LAIR:SHRINE:100]
[SWIMS_LEARNED][SWIM_SPEED:2500]
Yes, I made the most powerful thing in dwarf fortress into ADAMANTINE, made them COMPLETELY invincible, immune to fire, and gave them the ability to fly and breath fire...