Blue Whale (5e Creature)

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Blue Whale[edit]

Gargantuan beast, unaligned


Armor Class 18 (natural armor)
Hit Points 252 (24d12+4)
Speed 0 ft., swim 120 ft.


STR DEX CON INT WIS CHA
24 (+7) 10 (+0) 18 (+4) 6 (-2) 14 (+2) 7 (-2)

Skills Perception +6
Condition Immunities paralyzed, stunned
Senses passive Perception 16, Blindsight 120 ft.
Languages
Challenge 12 (8,400 XP)


Echolocation. The whale can't use its blindsight while deafened.

Keen Hearing. The whale has advantage on Wisdom (Perception) checks that rely on hearing.

Massive Lungs. The whale can hold its breath for 90 minutes. The whale won't lose his held breath as a result of damage.

Variant Rule Mythic Weakness. Releasing pepper in the mouth of the whale forces it to open its mouth and release every creature grappled by it.

Extremely Heavy. The whale can survive for 3 hours on land. Every turn thereafter, the whale takes 1 bludgeoning damage for every turn it remains on land. This damage comes from its weight crushing it, so being magically lifted, being given a flying speed, or other means of the DM's discretion can prevent it. Additionally, the whale takes double the normal damage from falling, but if it falls onto a creature, that creature takes an equal amount of bludgeoning damage.

ACTIONS

Bristled Chomp. Melee Weapon Attack: +12 to hit, reach 10 ft., one target. Hit: 62 (10d10 + 7) bludgeoning damage. If the target hit is a large or smaller creature, the creature is grappled (escape DC 21). While the creature is grappled this way, it is restrained. The whale can grapple 4 large creatures, 16 medium or small creatures, but about 1000 tiny creatures this way.

Swallow. The whale makes on Bristled Chomp against all creatures it has grappled in its mouth. If the attack hits a tiny size creature, the creature is also swallowed, and the grapple ends. While swallowed, the target is blinded and restrained, it has total cover against attacks and other effects outside the whale, and it takes 21 (6d6) acid damage at the start of each of the whale's turns. A whale can have several thousand tiny creatures swallowed at once. If the whale takes 30 damage or more on a single turn from the swallowed creatures, the whale must succeed on a DC 16 Constitution saving throw at the end of that turn or regurgitate all swallowed creatures, which fall prone in a space within 30 feet of the whale. If the whale dies, a swallowed creature is no longer restrained by it and can escape from the corpse by using 60 feet of movement, exiting prone.

Variant Rule Swallow. The whale makes a Bristled Chomp attack against all creatures it has grappled in its mouth. If the attack hits a creature, the creature is also swallowed, and the grapple ends. While swallowed, the target is blinded and restrained, it has total cover against attacks and other effects outside the whale, and it takes 36 (8d8) acid damage at the start of each of the whale's turns. A whale can have up to 4 large creatures, 16 medium or small creatures, but several thousand tiny creatures swallowed at once. If the whale takes 30 damage or more on a single turn from the swallowed creatures, the whale must succeed on a DC 16 Constitution saving throw at the end of that turn or regurgitate all swallowed creatures, which fall prone in a space within 30 feet of the whale. If the whale dies, a swallowed creature is no longer restrained by it and can escape from the corpse by using 60 feet of movement, exiting prone.


A REAL blue whale can only swallow tiny creatures like krill or those that have been crushed to a comparable size. Because of this, the stronger swallow attack and mythic weakness are variant rules, and don't have to be used. If using the variant rules, the whale's CR would be much higher, around CR 16-20. Be warned, raising the CR of the whale also raises it's proficiency bonus, which affects the whole stat block.

Something very important about real whales is that they don't eat creatures larger than a tiny size, so they might release any creatures not a threat to it that it realizes it has grappled in its mouth.



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