Kassoon

This is homebrew, submitted by a member of the community.

Tiamat, Reborn

Tiamat, Reborn

Gargantuan fiend, Chaotic EvilGargantuan fiend, Chaotic Evil
Armor Class 18 (Natural)18 (Natural)
[~<13]
+/-/*
Hit Points 225 (18d12+108)225 ([18d12+108])
[~1-6]
Speed 40 ft., climb 40 ft., fly 80 ft40 ft., climb 40 ft., fly 80 ft

STR
24 (+7)
DEX
10 (+0)
CON
22 (+6)
INT
20 (+5)
WIS
20 (+5)
CHA
20 (+5)

Token URL:
Saving Throws Dex +6, Con+8, Wisdom +6, Cha +7 Dex +6, Con+8, Wisdom +6, Cha +7
Skills Arcana +10, Perception +12, Religion +10 Arcana +10, Perception +12, Religion +10
Damage Vulnerabilities radiant
Damage Resistances -acid, cold, fire, lightning, poison; bludgeoning, piercing, and slashing from nonmagical attacks
Damage Immunities
Condition Immunities blinded, charmed, deafened, frightened, poisoned, stunned blinded, charmed, deafened, frightened, poisoned, stunned
Senses Passive Perception 22, darkvision 120ft, truesight 30ftPassive Perception 22, darkvision 120ft, truesight 30ft
Languages Common, draconic, infernalCommon, draconic, infernal
PB +5
Challenge 14 (11,500 XP)

[+instructions]

Actions

[~Hit +2, DC <13, DPR 0-1]

Multiattack. Tiamat can use her Frightful Presence. She then makes three attacks: two with her claws and one with her tail.

Claw. Weapon Attack: + 10 to hit, reach 10 ft., one target. Hit: 18 (2d10+7) slashing damage.

Tail. Melee Weapon Attack: + 19 to hit, reach 15 ft., one target. Hit: 18 (2d8+7) piercing damage.

Frightful Presence. Each creature of Tiamat's choice that is within 240 feet of Tiamat and aware of her must succeed on a DC 16 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature's saving throw is successful or the effect ends for it, the creature is immune to Tiamat's Frightful Presence for the next 24 hours.

Multiattack. Tiamat can use her Frightful Presence. She then makes three attacks: two with her claws and one with her tail.

Claw. Weapon Attack: + 10 to hit, reach 10 ft., one target. Hit: 18 ([2d10+7]) slashing damage.

Tail. Melee Weapon Attack: + 19 to hit, reach 15 ft., one target. Hit: 18 ([2d8+7]) piercing damage.

Frightful Presence. Each creature of Tiamat's choice that is within 240 feet of Tiamat and aware of her must succeed on a DC 16 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature's saving throw is successful or the effect ends for it, the creature is immune to Tiamat's Frightful Presence for the next 24 hours.

Legendary Actions

Tiamat can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. Tiamat regains spent legendary actions at the start of her turn. Tiamat's legendary action options are associated with her five dragon heads (a bite and a breath weapon for each). Once Tiamat chooses a legendary action option for one of her heads, she can't choose another one associated with that head until the start of her next turn.

Bite. Melee Weapon Attack: +12 to hit, reach 10 ft., one target. Hit: 18 (2d10+7) slashing damage plus 4 (1d8) acid damage (black dragon head), lightning damage (blue dragon head), poison damage (green dragon head), fire damage (red dragon head), or cold damage (white dragon head).

Black Dragon Head: Acid Breath (Costs 2 Actions). Tiamat exhales acid in a 30-foot line that is 5 feet wide. Each creature in that line must make a DC 17 Dexterity saving throw, taking 49 (11d8) acid damage on a failed save, or half as much damage on a successful one.

Blue Dragon Head: Lightning Breath (Costs 2 Actions). Tiamat exhales lightning in a 60-foot line that is 5 feet wide. Each creature in that line must make a DC 17 Dexterity saving throw, taking 55 (10d10) lightning damage on a failed save, or half as much damage on a successful one.

Green Dragon Head: Poison Breath (Costs 2 Actions). Tiamat exhales poisonous gas in a 30-foot cone. Each creature in that area must make a DC 17 Constitution saving throw, taking 42 (12d6) poison damage on a failed save, or half as much damage on a successful one.

Red Dragon Head: Fire Breath (Costs 2 Actions). Tiamat exhales fire in a 30-foot cone. Each creature in that area must make a DC 17 Dexterity saving throw, taking 56 (16d6) fire damage on a failed save, or half as much damage on a successful one.

White Dragon Head: Cold Breath (Costs 2 Actions). Tiamat exhales an icy blast in a 30-foot cone. Each creature in that area must make a DC 17 Dexterity saving throw, taking 49 (11d8) cold damage on a failed save, or half as much damage on a successful one.

Tiamat can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature's turn. Tiamat regains spent legendary actions at the start of her turn. Tiamat's legendary action options are associated with her five dragon heads (a bite and a breath weapon for each). Once Tiamat chooses a legendary action option for one of her heads, she can't choose another one associated with that head until the start of her next turn.

Bite. Melee Weapon Attack: [+12] to hit, reach 10 ft., one target. Hit: 18 ([2d10+7]) slashing damage plus 4 ([1d8]) acid damage (black dragon head), lightning damage (blue dragon head), poison damage (green dragon head), fire damage (red dragon head), or cold damage (white dragon head).

Black Dragon Head: Acid Breath (Costs 2 Actions). Tiamat exhales acid in a 30-foot line that is 5 feet wide. Each creature in that line must make a DC 17 Dexterity saving throw, taking 49 ([11d8]) acid damage on a failed save, or half as much damage on a successful one.

Blue Dragon Head: Lightning Breath (Costs 2 Actions). Tiamat exhales lightning in a 60-foot line that is 5 feet wide. Each creature in that line must make a DC 17 Dexterity saving throw, taking 55 ([10d10]) lightning damage on a failed save, or half as much damage on a successful one.

Green Dragon Head: Poison Breath (Costs 2 Actions). Tiamat exhales poisonous gas in a 30-foot cone. Each creature in that area must make a DC 17 Constitution saving throw, taking 42 ([12d6]) poison damage on a failed save, or half as much damage on a successful one.

Red Dragon Head: Fire Breath (Costs 2 Actions). Tiamat exhales fire in a 30-foot cone. Each creature in that area must make a DC 17 Dexterity saving throw, taking 56 ([16d6]) fire damage on a failed save, or half as much damage on a successful one.

White Dragon Head: Cold Breath (Costs 2 Actions). Tiamat exhales an icy blast in a 30-foot cone. Each creature in that area must make a DC 17 Dexterity saving throw, taking 49 ([11d8]) cold damage on a failed save, or half as much damage on a successful one.
 

Details

Discorporation. When Tiamat drops to 0 hit points or dies, her body is destroyed but her essence travels back to her domain in the Nine Hells, and she is unable to take physical form for a time. Discorporation. When Tiamat drops to 0 hit points or dies, her body is destroyed but her essence travels back to her domain in the Nine Hells, and she is unable to take physical form for a time.
 
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Monster Statistics by Challenge Rating

CRProf. BonusACHPAttack BonusDamage / RoundSave DC
0+2<131-6<+30-1<13
1/8+2137-35+32-313
1/4+21336-49+34-513
1/2+21350-70+36-813
1+21371-85+39-1413
2+21386-100+315-2013
3+213101-115+421-2613
4+214116-130+527-3214
5+315131-145+633-3815
6+315146-160+639-4415
7+315161-175+645-5015
8+316176-190+751-5616
9+416191-205+757-6216
10+417206-220+763-6816
11+417221-235+869-7417
12+417236-250+875-8017
13+518251-265+881-8618
14+518266-280+887-9218
15+518281-295+893-9818
16+518296-310+999-10418
17+619311-325+10105-11019
18+619326-340+10111-11619
19+619341-355+10117-12219
20+619356-400+10123-14019
21+719401-445+11141-15820
22+719446-490+11159-17620
23+719491-535+11177-19420
24+719536-580+12195-21221
25+819581-625+12213-23021
26+819626-670+12231-24821
27+819671-715+13249-26622
28+819716-760+13267-28422
29+919761-805+13285-30222
30+919806-850+14303-32023

Damage Severity by Level

LevelSetbackDangerousDeadly
1-41d102d104d10
5-102d104d1010d10
11-164d1010d1018d10
17-2010d1018d1024d10

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