Legendary Resistance (3/Day). If the tarrasque fails a saving throw, it can choose to succeed instead.
Magic Resistance. The tarrasque has advantage on saving throws against spells and other magical effects.
Reflective Carapace. Any time the tarrasque is targeted by a magic missile spell, a line spell, or a spell that requires a ranged attack roll, roll a d6. On a 1 to 5, the tarrasque is unaffected. On a 6, the tarrasque is unaffected, and the effect is reflected back at the caster as though it originated from the tarrasque, turning the caster into the target.
Siege Monster. The tarrasque deals double damage to objects and structures.
Multiattack. The tarrasque can use its Frightful Presence. It then makes five attacks: one with its bite, two with its claws, one with its horns, and one with its tail. It can use its Swallow instead of its bite.
Bite. Melee Weapon Attack: +19 to hit, reach 10 ft., one target. Hit: 36 (4d12 + 10) piercing damage. If the target is a creature, it is grappled (escape DC 20). Until this grapple ends, the target is restrained, and the tarrasque can’t bite another target.
Claw. Melee Weapon Attack: +19 to hit, reach 15ft., one target. Hit: 28 (4d8 + 10) slashing damage.
Horns. Melee Weapon Attack: +19 to hit, reach 10ft., one target. Hit: 32 (4d10 + 10) piercing damage.
Tail. Melee Weapon Attack: +19 to hit, reach 20ft., one target. Hit: 24 (4d6 + 10) bludgeoning damage. If the target is a creature, it must succeed on a DC 20 Strength saving throw or be knocked prone.
Frightful Presence. Each creature of the tarrasque’s choice within 120 feet of it and aware of it must succeed on a DC 17 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, with disadvantage if the tarrasque is within line of sight, 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 the tarrasque’s Frightful Presence for the next 24 hours.
Swallow. The tarrasque makes one bite attack against a Large or smaller creature it is grappling. If the attack hits, the target takes the bite’s damage, the target is swallowed, and the grapple ends. While swallowed, the creature is blinded and restrained, it has total cover against attacks and other effects outside the tarrasque, and it takes 56 (16d6) acid damage at the start of each of the tarrasque’s turns.
If the tarrasque takes 60 damage or more on a single turn from a creature inside it, the tarrasque must succeed on a DC 20 Constitution saving throw at the end of that turn or regurgitate all swallowed creatures, which fall prone in a space within 10 feet of the tarrasque. If the tarrasque dies, a swallowed creature is no longer restrained by it and can escape from the corpse by using 30 feet of movement, exiting prone.
The tarrasque 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. The tarrasque regains spent legendary actions at the start of its turn.
Attack. The tarrasque makes one claw attack or tail attack.
Move. The tarrasque moves up to half its speed.
Chomp (Costs 2 Actions). The tarrasque makes one bite attack or uses its Swallow.
Nothing like thinking that my party can handle it at level 12....and they did somehow
I wonder what the players will think when they see the first cave they go into is essentially a cave full of this monster. (Their Lv.1-2)
My Lv1 players all have OP divine protections and Authority powers, I think they'll be fine,
My level 1 tiefling sorcerer 50 hours into Mind Spiking this thing from 55 ft up
for some reason, one of my players decided to be Gandalf and take it on by himself.
he died very fast
Totally didn't make two of these things my big bad's guard-dogs... Shhh....
I have been inspired to make a boss designed to defend the Material Plane against the Tarrasque in a custom campaign.
The Tarrasque can be solo killed by any level 1 caster with a cantrip that doesn't require an attack roll and a flight item like a flying carpet. Your players will cheese this fight unless you force them to actually defend something, or put in a pretty tight Ticking Clock.
I'm making a baby tarrasque to tone this thing down to a normal boss for like a level 7 adventurer lol
You thinks it's overpowered at first, then you realize: It has no ranged attacks. And flight exists. Spells, mounts, class features, and even some race features give flight. throw in a +1 bow, and it can't damage you while you whittle down its health. For overkill, you could do the Bardcher build, but that's OP against ANY monster. (average of 112dpr against CR 25 creature)
dale
Plus maybe give your players a few Epic Boons.
Here's an idea for a ranged attack. Allow it to vomit on it's enemies, which will replicate the effects of a black dragon's breath weapon, or a 9th-level tasha's caustic brew spell. Or use the effects of a vitriolic sphere spell for a mega spitball! I agree, a flying sharpshooter or blaster mage would slowly but surely chip away at its hard-as-adamantine shell.
The way to counter a ranged character without modifying the monster? Tarraques have a +10 Strength modifier, and are Garguantuan, so it can throw boulders or houses at a flying creature, likely knocking it out of the sky. The way I see it, this monster has over 600 hit points, and 25 AC, so it doesn't need regen. But it does need ranged attacks. Without a climbing speed, only a feeble 40 feet walking speed, archers or spellcasters positioned on a high cliff would effectively be untouchable. I think its too heavy to climb. At least give it the Rock attack that giants get. I'll let you decide if it should be able to barf.
I'm going to make a battle arena campaign, where characters start at level 1. They level up after completing a wave-oriented battle in the arena. Once they reach level 10, characters level up after every two completed battles. At level 20, advancement is represented by Epic Boons and ASIs. Eventually, they'll get to fight a Tarrasque. Characters earn gold after each battle, so they can spend them on magic items.
How tf is this thing cr 30 my players took this down at lvl 9 ;-;
either I am a bad DM (which I will happily accept)
or
my players are meta gaming.
It would actually take about 776 level 1 characters to kill the tarrasque, and they would all have to have some way to deal magic damage or they won't be able to damage it in any way
If you want to know why I said 776, I used dndbeyond encounter builder. This is the encounter I made for this.
Witch Godzilla though
Dies to clay golem
Go check my Abyssal Dragon homebrew, if you want something better
i wonder why my friends left after i made them fight it as level 1 wizards