Sources
CR
Type
Size
Alignment
Movement

Sky Whale

Huge Beast, Unaligned

Armor Class 14 (natural armor)
Hit Points 85 (9d12 + 27)
Speed fly 50 ft. (hover)
STR
21
+5
DEX
9
-1
CON
17
+3
INT
2
-4
WIS
10
+0
CHA
7
-2
Skills Stealth +5
Senses passive Perception 10
Languages
Challenge 5 (1,800 XP)

Traits

Hold Breath. The whale can hold its breath for 30 minutes.

Actions

Multiattack. The whale makes two attacks: one with its bite and one with its tail.

Flipper. Melee Weapon Attack: +8 to hit, reach 10 ft., one target not grappled by the whale. Hit:14 (2d8 + 5) bludgeoning damage. If the target is a creature, it must succeed on a DC 16 Strength saving throw or be knocked prone.

Tail. Melee Weapon Attack: +8 to hit, reach 10 ft., one target not grappled by the whale. Hit:14 (2d8 + 5) bludgeoning damage. If the target is a creature, it must succeed on a DC 16 Strength saving throw or be knocked prone.

Lore

The aethersphere is home to its own ecosystem. Tiny organisms float in the aether currents, deriving all their energy from it and serving as food for larger creatures. Leviathans (similar in form to enormous eels) and flying whales filter these organisms out of the air as they swim through the aethersphere. The whales, as a rule, are not hostile by nature, though they can cause devastating sparks or destructive storms as they move through the aether flows. But leviathans are perpetually hungry,…