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System Reference Document 5.2.1
Points are divided evenly between the new puddings 
(round down).
Blink Dog
Blink Dog
Medium Fey, Lawful Good
AC 13  Initiative +3 (13)
HP 22 (4d8 + 4)
Speed 40 ft.
MOD SAVE MOD SAVE MOD SAVE
Str 12 +1 +1 Dex 17 +3 +3 Con 12 +1 +1
Int 10 +0 +0 WIS 13 +1 +1 Cha 11 +0 +0
Skills Perception +5, Stealth +5
Senses Darkvision 60 ft.; Passive Perception 15
Languages Blink Dog; understands Elvish and Sylvan but 
can’t speak them
CR 1/4 (XP 50; PB +2)
Actions
Bite. Melee Attack Roll: +5, reach 5 ft. Hit: 5 (1d4 + 3) 
Piercing damage.
Bonus Actions
Teleport (Recharge 4–6). The dog teleports up to 40 
feet to an unoccupied space it can see.
Blue Dragons
Blue Dragon Wyrmling
Medium Dragon (Chromatic), Lawful Evil
AC 17  Initiative +2 (12)
HP 65 (10d8 + 20)
Speed 30 ft., Burrow 15 ft., Fly 60 ft.
MOD SAVE MOD SAVE MOD SAVE
Str 17 +3 +3 Dex 10 +0 +2 Con 15 +2 +2
Int 12 +1 +1 WIS 11 +0 +2 Cha 15 +2 +2
Skills Perception +4, Stealth +2
Immunities Lightning
Senses Blindsight 10 ft., Darkvision 60 ft.; 
Passive Perception 14
Languages Draconic
CR 3 (XP 700; PB +2)
Actions
Multiattack. The dragon makes two Rend attacks.
Rend. Melee Attack Roll: +5, reach 5 ft. Hit: 8 (1d10 
+ 3) Slashing damage plus 3 (1d6) Lightning damage.
Lightning Breath (Recharge 5–6). Dexterity Saving 
Throw: DC 12, each creature in a 30-foot-long, 5-foot-
wide Line. Failure: 21 (6d6) Lightning damage. Success: 
Half damage.
Young Blue Dragon
Large Dragon (Chromatic), Lawful Evil
AC 18  Initiative +4 (14)
HP 152 (16d10 + 64)
Speed 40 ft., Burrow 20 ft., Fly 80 ft.
MOD SAVE MOD SAVE MOD SAVE
Str 21 +5 +5 Dex 10 +0 +4 Con 19 +4 +4
Int 14 +2 +2 WIS 13 +1 +5 Cha 17 +3 +3
Skills Perception +9, Stealth +4
Immunities Lightning
Senses Blindsight 30 ft., Darkvision 120 ft.; 
Passive Perception 19
Languages Common, Draconic
CR 9 (XP 5,000; PB +4)
Actions
Multiattack. The dragon makes three Rend attacks.
Rend. Melee Attack Roll: +9, reach 10 ft. Hit: 12 (2d6 
+ 5) Slashing damage plus 5 (1d10) Lightning damage.
Lightning Breath (Recharge 5–6). Dexterity Saving 
Throw: DC 16, each creature in a 60-foot-long, 5-foot-
wide Line. Failure: 55 (10d10) Lightning damage. Suc-
cess: Half damage.
Adult Blue Dragon
Huge Dragon (Chromatic), Lawful Evil
AC 19  Initiative +10 (20)
HP 212 (17d12 + 102)
Speed 40 ft., Burrow 30 ft., Fly 80 ft.
MOD SAVE MOD SAVE MOD SAVE
Str 25 +7 +7 Dex 10 +0 +5 Con 23 +6 +6
Int 16 +3 +3 WIS 15 +2 +7 Cha 20 +5 +5
Skills Perception +12, Stealth +5
Immunities Lightning
Senses Blindsight 60 ft., Darkvision 120 ft.; 
Passive Perception 22
Languages Common, Draconic
CR 16 (XP 15,000, or 18,000 in lair; PB +5)
Traits
Legendary Resistance (3/Day, or 4/Day in Lair). If 
the dragon fails a saving throw, it can choose to suc-
ceed instead.
Actions
Multiattack. The dragon makes three Rend attacks. It 
can replace one attack with a use of Spellcasting to 
cast Shatter.
Rend. Melee Attack Roll: +12, reach 10 ft. Hit: 16 (2d8 
+ 7) Slashing damage plus 5 (1d10) Lightning damage.
Lightning Breath (Recharge 5–6). Dexterity Saving 
Throw: DC 19, each creature in a 90-foot-long, 5-foot-