Looks like fun. I've got a few:
A giant spell, to double the size of the user. It was originally used as a syndrome for a rare plant, so timespan/targets may need adjustment to make it fair.
[INTERACTION:GIANT]
[I_TARGET:A:CREATURE]
[IT_LOCATION:CONTEXT_CREATURE]
[IT_CANNOT_TARGET_IF_ALREADY_AFFECTED]
[I_EFFECT:ADD_SYNDROME]
[IE_TARGET:A]
[IE_IMMEDIATE]
[IE_ARENA_NAME:Giant]
[SYNDROME]
[SYN_NAME:giant power]
[CE_DISPLAY_NAME:NAME:giant:giants:giant:START:0:END:33600]
[CE_FLASH_TILE:TILE:6:7:0:1:FREQUENCY:500:60:START:0:END:33600]
[CE_BODY_APPEARANCE_MODIFIER:START:0:END:33600:APPEARANCE_MODIFIER:HEIGHT:200]
[CE_BODY_APPEARANCE_MODIFIER:START:0:END:33600:APPEARANCE_MODIFIER:LENGTH:200]
[CE_BODY_APPEARANCE_MODIFIER:START:0:END:33600:APPEARANCE_MODIFIER:BROADNESS:200]
[CE_PHYS_ATT_CHANGE:STRENGTH:200:0:TOUGHNESS:200:0:START:0:END:33600]
A psychic 'torture' attack. It's meant to have a short cooldown period, so that the user can apply it continuously and 'drain' the target's life over time as well as incapacitating them.
[INTERACTION:PSYCHIC_ATTACK_MAJOR]
[I_SOURCE:CREATURE_ACTION]
[I_TARGET:A:CREATURE]
[IT_LOCATION:CONTEXT_CREATURE]
[IT_MANUAL_INPUT:creature]
[IT_CANNOT_TARGET_IF_ALREADY_AFFECTED]
[I_EFFECT:ADD_SYNDROME]
[IE_TARGET:A]
[IE_IMMEDIATE]
[SYNDROME]
[SYN_NAME:psychic attack]
[SYN_AFFECTED_CLASS:GENERAL_POISON]
[CE_NAUSEA:SEV:10000000:PROB:100:START:0:PEAK:10:END:20]
[CE_PAIN:SEV:10000000:PROB:100:START:0:PEAK:10:END:20]
[CE_COUGH_BLOOD:SEV:100000:PROB:100:START:0:PEAK:10:END:20]
[CE_VOMIT_BLOOD:SEV:100000:PROB:100:START:0:PEAK:10:END:20]
[CE_BLEEDING:BP:BY_CATEGORY:ALL:ALL:SEV:1000:PROB:100:START:0:PEAK:10:END:20]
Doom spell. It has no effect up until exactly one year after its use, when 9 out of 10 targets will suddenly suffocate and die (the rest will probably go insane after seeing all of their friends drop dead at once). Give it to a monster that could spread it quickly throughout a fortress, and you can be sure to have plenty of Fun when the clock runs out.
[INTERACTION:DOOM]
[I_SOURCE:CREATURE_ACTION]
[I_TARGET:A:CREATURE]
[IT_LOCATION:CONTEXT_CREATURE]
[IT_CANNOT_HAVE_SYNDROME_CLASS:DOOMED]
[IT_MANUAL_INPUT:creature]
[I_EFFECT:ADD_SYNDROME]
[IE_TARGET:A]
[IE_IMMEDIATE]
[SYNDROME]
[SYN_CLASS:DOOM]
[SYN_NAME:doom]
[SYN_AFFECTED_CLASS:GENERAL_POISON]
[CE_IMPAIR_FUNCTION:BP:BY_CATEGORY:LUNG:ALL:SEV:100000:PROB:90:START:403200:PEAK:404700:END:406200]
[CE_FLASH_TILE:TILE:197:7:0:1:FREQUENCY:6000:60:START:0:END:100800] 1 year left
[CE_FLASH_TILE:TILE:197:7:0:1:FREQUENCY:3000:60:START:100800:END:151200] half-year left
[CE_FLASH_TILE:TILE:197:7:0:1:FREQUENCY:1500:60:START:151200:END:184800] 3 months left
[CE_FLASH_TILE:TILE:197:7:0:1:FREQUENCY:500:60:START:184800:END:201000] 1 month left
[CE_FLASH_TILE:TILE:197:7:0:1:FREQUENCY:120:60:START:201000:END:201600] 1 day left
A 'baleful polymorph' secret, granting the user the power to turn enemies into mushrooms (which die easily but have a short transformation time), eggs (which resist unarmed attacks but are easily destroyed by weapons, can move a little bit but are blind) and stone blocks (instant kill and nets you a free block, but long cooldown period).
The interactions:
[INTERACTION:POLYMORPH_MAGIC_MW]
[I_SOURCE:SECRET]
[IS_NAME:polymorph magic]
[IS_SPHERE:CREATION]
[IS_SECRET_GOAL:IMMORTALITY]
[IS_SECRET:SUPERNATURAL_LEARNING_POSSIBLE]
[IS_SECRET:MUNDANE_RESEARCH_POSSIBLE]
[IS_SECRET:MUNDANE_TEACHING_POSSIBLE]
[IS_SECRET:MUNDANE_RECORDING_POSSIBLE:objects/text/book_instruction.txt:objects/text/secret_polymorph_mw.txt]
[I_TARGET:A:CREATURE]
[IT_LOCATION:CONTEXT_CREATURE]
[IT_REQUIRES:MORTAL]
[IT_REQUIRES:CAN_LEARN]
[IT_REQUIRES:CAN_SPEAK]
[I_EFFECT:ADD_SYNDROME]
[IE_TARGET:A]
[IE_IMMEDIATE]
[IE_ARENA_NAME:Polymorpher]
[SYNDROME]
[CE_DISPLAY_NAME:NAME:polymorpher:polymorphers:polymorphic:START:0]
[CE_CAN_DO_INTERACTION:START:0]
[CDI:ADV_NAME:Polymorph - mushroom]
[CDI:INTERACTION:POLYMORPH_MUSHROOM_MW]
[CDI:USAGE_HINT:ATTACK]
[CDI:TARGET:A:LINE_OF_SIGHT]
[CDI:TARGET_RANGE:A:10]
[CDI:MAX_TARGET_NUMBER:A:1]
[CDI:VERB:cast a spell:casts a spell:NA]
[CDI:WAIT_PERIOD:100]
[CE_CAN_DO_INTERACTION:START:0]
[CDI:ADV_NAME:Polymorph - large egg]
[CDI:INTERACTION:POLYMORPH_EGG_MW]
[CDI:USAGE_HINT:ATTACK]
[CDI:TARGET:A:LINE_OF_SIGHT]
[CDI:TARGET_RANGE:A:10]
[CDI:MAX_TARGET_NUMBER:A:1]
[CDI:VERB:cast a spell:casts a spell:NA]
[CDI:WAIT_PERIOD:1000]
[CE_CAN_DO_INTERACTION:START:0]
[CDI:ADV_NAME:Polymorph - stone block]
[CDI:INTERACTION:POLYMORPH_BLOCK_MW]
[CDI:USAGE_HINT:ATTACK]
[CDI:TARGET:A:LINE_OF_SIGHT]
[CDI:TARGET_RANGE:A:10]
[CDI:MAX_TARGET_NUMBER:A:1]
[CDI:VERB:cast a spell:casts a spell:NA]
[CDI:WAIT_PERIOD:10000]
[INTERACTION:POLYMORPH_MUSHROOM_MW]
[I_SOURCE:CREATURE_ACTION]
[I_TARGET:A:CREATURE]
[IT_LOCATION:CONTEXT_CREATURE]
[IT_MANUAL_INPUT:creature]
[I_EFFECT:ADD_SYNDROME]
[IE_TARGET:A]
[IE_IMMEDIATE]
[SYNDROME]
[SYN_NAME:transformed]
[SYN_AFFECTED_CLASS:GENERAL_POISON]
[CE_BODY_TRANSFORMATION:START:0:END:500]
[CE:CREATURE:MUSHROOM_MW:DEFAULT]
[INTERACTION:POLYMORPH_EGG_MW]
[I_SOURCE:CREATURE_ACTION]
[I_TARGET:A:CREATURE]
[IT_LOCATION:CONTEXT_CREATURE]
[IT_MANUAL_INPUT:creature]
[I_EFFECT:ADD_SYNDROME]
[IE_TARGET:A]
[IE_IMMEDIATE]
[SYNDROME]
[SYN_NAME:transformed]
[SYN_AFFECTED_CLASS:GENERAL_POISON]
[CE_BODY_TRANSFORMATION:START:0:END:1000]
[CE:CREATURE:EGG_MW:DEFAULT]
[INTERACTION:POLYMORPH_BLOCK_MW]
[I_SOURCE:CREATURE_ACTION]
[IS_HIST_STRING_1: transformed ]
[IS_HIST_STRING_2: into a stone block]
[I_TARGET:A:CREATURE]
[IT_LOCATION:CONTEXT_CREATURE]
[IT_MANUAL_INPUT:creature]
[I_EFFECT:ADD_SYNDROME]
[IE_TARGET:A]
[IE_IMMEDIATE]
[SYNDROME]
[SYN_NAME:transformed]
[SYN_AFFECTED_CLASS:GENERAL_POISON]
[CE_BODY_TRANSFORMATION:START:0:END:10000]
[CE:CREATURE:BLOCK_MW:DEFAULT]
[CE_PARALYSIS:SEV:10000:PROB:100:START:0:PEAK:10:END:100]
The creatures:
[CREATURE:MUSHROOM_MW]
[DESCRIPTION:A creature that has been transformed into a mushroom through dark magic.]
[NAME:mushroom:mushrooms:mushroom]
[CASTE_NAME:mushroom:mushrooms:mushroom]
[CREATURE_TILE:6][COLOR:1:0:1]
[NO_GENDER]
[IMMOBILE][NOBONES][NO_DRINK][NO_EAT][NO_SLEEP][NONAUSEA][NOPAIN][NOBREATHE][NO_THOUGHT_CENTER_FOR_MOVEMENT]
[PREFSTRING:spots]
[BODY:BODY_WITH_HEAD_FLAG:2EYES:CAP]
[RELSIZE:BY_CATEGORY:HEAD:300]
[BODY_DETAIL_PLAN:STANDARD_HEAD_POSITIONS]
[BODY_DETAIL_PLAN:CAP_POSITION]
[USE_MATERIAL_TEMPLATE:MUSHROOM_TISSUE:STRUCTURAL_PLANT_TEMPLATE]
[STATE_NAME:ALL_SOLID:mushroom tissue]
[STATE_ADJ:ALL_SOLID:mushroom tissue]
[STATE_NAME:LIQUID:melted mushroom tissue]
[STATE_ADJ:LIQUID:melted mushroom tissue]
[STATE_NAME:GAS:boiling mushroom tissue]
[STATE_ADJ:GAS:boiling mushroom tissue]
[PREFIX:NONE]
[MEAT]
[EDIBLE_VERMIN]
[EDIBLE_RAW]
[EDIBLE_COOKED]
[TISSUE:MUSHROOM]
[TISSUE_NAME:mushroom tissue:NP]
[TISSUE_MATERIAL:LOCAL_CREATURE_MAT:MUSHROOM_TISSUE]
[MUSCULAR]
[VASCULAR:10]
[STRUCTURAL]
[RELATIVE_THICKNESS:1]
[CONNECTS]
[TISSUE_SHAPE:LAYER]
[TISSUE_LAYER:BY_CATEGORY:ALL:MUSHROOM]
[USE_MATERIAL_TEMPLATE:JUICE:PLANT_EXTRACT_TEMPLATE]
[STATE_NAME:ALL_SOLID:frozen mushroom juice]
[STATE_ADJ:ALL_SOLID:frozen mushroom juice]
[STATE_NAME:LIQUID:mushroom juice]
[STATE_ADJ:LIQUID:mushroom juice]
[STATE_NAME:GAS:boiling mushroom juice]
[STATE_ADJ:GAS:boiling mushroom juice]
[BLOOD:LOCAL_CREATURE_MAT:JUICE:LIQUID]
[BODY_SIZE:0:0:50000]
[BODY_APPEARANCE_MODIFIER:LENGTH:90:95:98:100:102:105:110]
[BODY_APPEARANCE_MODIFIER:HEIGHT:90:95:98:100:102:105:110]
[BODY_APPEARANCE_MODIFIER:BROADNESS:90:95:98:100:102:105:110]
[ALL_ACTIVE]
[SPEED:5000][SWIMS_INNATE][SWIM_SPEED:5000]
[SET_TL_GROUP:BY_CATEGORY:CAP:MUSHROOM]
[TL_COLOR_MODIFIER:GREEN:20:RED:5:BLUE:5:YELLOW:5:PINK:5:LIGHT_BLUE:5:PURPLE:5:BROWN:5:ORANGE:5:BLACK:1:WHITE:1]
[TLCM_NOUN:cap:SINGULAR]
[CREATURE:EGG_MW]
[DESCRIPTION:A creature that has been transformed into an egg through dark magic.]
[NAME:large egg:large eggs:large egg]
[CASTE_NAME:large egg:large eggs:large egg]
[CREATURE_TILE:9][COLOR:7:0:1]
[NO_GENDER]
[NOBONES][NO_DRINK][NO_EAT][NO_SLEEP][NONAUSEA][NOPAIN][NOBREATHE][NO_THOUGHT_CENTER_FOR_MOVEMENT]
[PREFSTRING:rolling]
[BODY:BODY_WITH_HEAD_FLAG]
[BODY_DETAIL_PLAN:EGG_MATERIALS]
[TISSUE:EGGSHELL]
[TISSUE_NAME:shell:NP]
[TISSUE_MATERIAL:LOCAL_CREATURE_MAT:EGGSHELL]
[TISSUE_MAT_STATE:SOLID]
[STRUCTURAL]
[CONNECTS]
[RELATIVE_THICKNESS:1]
[TISSUE_SHAPE:LAYER]
[TISSUE:EGG_WHITE]
[TISSUE_NAME:white:NP]
[TISSUE_MATERIAL:LOCAL_CREATURE_MAT:EGG_WHITE]
[TISSUE_MAT_STATE:LIQUID]
[RELATIVE_THICKNESS:1]
[TISSUE_LEAKS]
[TISSUE_SHAPE:LAYER]
[TISSUE:EGG_YOLK]
[TISSUE_NAME:yolk:NP]
[TISSUE_MATERIAL:LOCAL_CREATURE_MAT:EGG_YOLK]
[TISSUE_MAT_STATE:LIQUID]
[RELATIVE_THICKNESS:1]
[MUSCULAR]
[FUNCTIONAL]
[STRUCTURAL]
[CONNECTS]
[TISSUE_LEAKS]
[TISSUE_SHAPE:LAYER]
[BODY_DETAIL_PLAN:EXOSKELETON_TISSUE_LAYERS:EGGSHELL:EGG_WHITE:EGG_YOLK]
[SELECT_TISSUE_LAYER:EGGSHELL:BY_CATEGORY:ALL]
[TL_RELATIVE_THICKNESS:5]
[SELECT_TISSUE_LAYER:EGG_WHITE:BY_CATEGORY:ALL]
[TL_RELATIVE_THICKNESS:10]
[SELECT_TISSUE_LAYER:EGG_YOLK:BY_CATEGORY:ALL]
[TL_RELATIVE_THICKNESS:5]
[BODY_SIZE:0:0:50000]
[BODY_APPEARANCE_MODIFIER:LENGTH:90:95:98:100:102:105:110]
[BODY_APPEARANCE_MODIFIER:HEIGHT:90:95:98:100:102:105:110]
[BODY_APPEARANCE_MODIFIER:BROADNESS:90:95:98:100:102:105:110]
[ALL_ACTIVE]
[SPEED:5000][SWIMS_INNATE][SWIM_SPEED:5000]
[SET_TL_GROUP:BY_CATEGORY:ALL:EGGSHELL]
[TL_COLOR_MODIFIER:GREEN:20:RED:5:BLUE:5:YELLOW:5:PINK:5:LIGHT_BLUE:5:PURPLE:5:BROWN:5:ORANGE:5:BLACK:1:WHITE:1]
[TLCM_NOUN:eggshell's spots:SINGULAR]
[CREATURE:BLOCK_MW]
[DESCRIPTION:A creature that has been transformed into a stone block through dark magic.]
[NAME:block:blocks:block]
[CASTE_NAME:block:blocks:block]
[CREATURE_TILE:254][COLOR:0:0:1]
[NO_GENDER]
[IMMOBILE][NOBONES][NO_DRINK][NO_EAT][NO_SLEEP][NONAUSEA][NOPAIN]
[PREFSTRING:mysterious origins]
[BODY:BODY_WITH_HEAD_FLAG:2EYES:2LUNGS]
[RELSIZE:BY_CATEGORY:HEAD:300]
[USE_MATERIAL_TEMPLATE:STONE:STONE_TEMPLATE]
[TISSUE:STONE]
[TISSUE_NAME:stone:NP]
[TISSUE_MATERIAL:INORGANIC:OBSIDIAN]
[TISSUE_MAT_STATE:SOLID]
[RELATIVE_THICKNESS:1]
[CONNECTS]
[STRUCTURAL]
[MUSCULAR]
[TISSUE_SHAPE:LAYER]
[TISSUE_LAYER:BY_CATEGORY:ALL:STONE]
[BODY_SIZE:0:0:50000]
[BODY_APPEARANCE_MODIFIER:LENGTH:90:95:98:100:102:105:110]
[BODY_APPEARANCE_MODIFIER:HEIGHT:90:95:98:100:102:105:110]
[BODY_APPEARANCE_MODIFIER:BROADNESS:90:95:98:100:102:105:110]
[ALL_ACTIVE]
[SPEED:10000][SWIMS_INNATE][SWIM_SPEED:10000]
[ITEMCORPSE:BLOCKS:NO_SUBTYPE:STONE:USE_LAVA_STONE]
[SET_TL_GROUP:BY_CATEGORY:ALL:STONE]
[TL_COLOR_MODIFIER:BLACK:10:GRAY:CHARCOAL]
[TLCM_NOUN:stone:SINGULAR]
Some body parts and things
[BODY:CAP]
[BP:CAP:cap:STP][CONTYPE:HEAD][SOCKET][CATEGORY:CAP]
[DEFAULT_RELSIZE:1000]
[VERMIN_BUTCHER_ITEM]
[BODY_DETAIL_PLAN:CAP_POSITION]
[BP_RELATION:BY_TOKEN:CAP:AROUND:BY_CATEGORY:HEAD:75]
secret_polymorph_mw.txt
Polymorphing
Transformation
Shapeshifting
Turning People into Things
Geometric Magic
De-evolution
A totally overpowered spell. Can give an unarmed dorf the power to cut through a herd of elephants like a magma-heated adamantine knife through butter. It was designed as a 'vermin bite' syndrome from an extremely rare vermin. Could still be fun to play with in the arena though.
[INTERACTION:STAR_POWER]
[I_TARGET:A:CREATURE]
[IT_LOCATION:CONTEXT_CREATURE]
[I_EFFECT:ADD_SYNDROME]
[IE_TARGET:A]
[IE_IMMEDIATE]
[IE_ARENA_NAME:Star power]
[SYNDROME]
[SYN_NAME:star power]
[CE_DISPLAY_NAME:NAME:star:stars:star:START:0:END:33600]
[CE_FLASH_TILE:TILE:176:7:0:1:FREQUENCY:120:60:START:0:END:16800]
[CE_PHYS_ATT_CHANGE:STRENGTH:5000:0:AGILITY:5000:0:TOUGHNESS:5000:0:ENDURANCE:5000:0:RECUPERATION:5000:0:DISEASE_RESISTANCE:5000:0:START:0:END:16800]
[CE_ADD_TAG:NOEXERT:NOPAIN:NOBREATHE:NOSTUN:NONAUSEA:NO_DIZZINESS:NO_FEVERS:PARALYZEIMMUNE:NO_EAT:NO_DRINK:NO_SLEEP:START:0:END:16800]