Kassoon

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

Thessalhydra

Thessalhydra

Huge monstrosity, unalignedHuge monstrosity, unaligned
Armor Class 14 (natural armor)14 (natural armor)
Hit Points 69 (6d12+30)69 ([6d12+30])
+/-/*

Speed 30 ft., swim 30 ft.30 ft., swim 30 ft.

STR
19 (+4)
DEX
12 (+1)
CON
20 (+5)
INT
5 (-3)
WIS
10 (+0)
CHA
7 (-2)

Token URL:
Saving Throws
Skills Perception +4 Perception [+4]
Damage Vulnerabilities
Damage Resistances -
Damage Immunities acid
Condition Immunities blinded, charmed, deafened, frightened, stunned blinded, charmed, deafened, frightened, stunned
Senses darkvision 60 ft., passive Perception 14darkvision 60 ft., passive Perception 14
Languages
PB +2
Challenge 4 (1,100 XP)

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Actions

Multiattack. The thessalhydra makes one maw attack and one Flurry of Bites.

Flurry of Bites. Melee Weapon Attack: +7 to hit, reach 10 ft., one target. Hit: 7 (1d6+4) piercing damage plus 10 (4d4) poison damage.

Maw. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit: 9 (1d10+4) piercing damage plus 5 (1d10) acid damage.

Tail Pincer. Melee Weapon Attack: +7 to hit, reach 10 ft., one target. Hit: 10 (1d12+4) slashing damage, and the target is grappled. As an action, the target can escape the grapple by succeeding on a DC 14 Strength (Athletics) or Dexterity (Acrobatics) check (its choice). Until this grapple ends, the thessalhydra can't use its tail pincer.

Acid Saliva (Recharge d6: 5–6). The thessalhydra spits a glob of acid at a point it can see within 30 feet of it. Each creature within 10 feet of that point must make a DC 15 Dexterity saving throw, taking 18 (4d8) acid damage on a failed save, or half as much damage on a successful one.

[b]Multiattack.[/b] The thessalhydra makes one maw attack and one Flurry of Bites.

[b]Flurry of Bites.[/b] Melee Weapon Attack: [+7] to hit, reach 10 ft., one target. Hit: 7 ([1d6+4]) piercing damage plus 10 ([4d4]) poison damage.

[b]Maw.[/b] Melee Weapon Attack: [+7] to hit, reach 5 ft., one target. Hit: 9 ([1d10+4]) piercing damage plus 5 ([1d10]) acid damage.

[b]Tail Pincer.[/b] Melee Weapon Attack: [+7] to hit, reach 10 ft., one target. Hit: 10 ([1d12+4]) slashing damage, and the target is grappled. As an action, the target can escape the grapple by succeeding on a DC 14 Strength (Athletics) or Dexterity (Acrobatics) check (its choice). Until this grapple ends, the thessalhydra can't use its tail pincer.

[b]Acid Saliva (Recharge [d6]: 5–6).[/b] The thessalhydra spits a glob of acid at a point it can see within 30 feet of it. Each creature within 10 feet of that point must make a DC 15 Dexterity saving throw, taking 18 ([4d8]) acid damage on a failed save, or half as much damage on a successful one.

Legendary Actions

The thessalhydra can take 2 legendary actions, choosing from the options below. Only one legendary action can be used at a time and only at the end of another creature's turn. The thessalhydra regains spent legendary actions at the start of its turn.

Detect. The thessalhydra makes a Wisdom (Perception) check with advantage.

Tail Swipe. The thessalhydra makes a tail pincer attack.

The thessalhydra can take 2 legendary actions, choosing from the options below. Only one legendary action can be used at a time and only at the end of another creature's turn. The thessalhydra regains spent legendary actions at the start of its turn.

[b]Detect.[/b] The thessalhydra makes a Wisdom (Perception) check with advantage.

[b]Tail Swipe.[/b] The thessalhydra makes a tail pincer attack.
 

Details

 
Source Hunt for the Thessalhydra p. 41
 
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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
l/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+10lll-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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