Armor Class 15 natural armor
Hit Points 115 (10d10 + 60)
Speed 15 ft., fly 100 ft.
Roll Initiative! +5
STR
18(+4)
DEX
21(+5)
CON
15(+2)
INT
8(-1)
WIS
17(+3)
CHA
12(+1)
Skills Nature +6, Perception +8, Intimidation +6
Damage Resistances Cold
Damage Immunities Lightning, Thunder
Senses Darkvision 60 ft
Languages understands Common and Auran but can't speak them
Challenge 9 (5000 XP)
Proficiency Bonus +4
Keen Sight. The eagle has advantage on Wisdom (Perception) checks that rely on sight.
Conduit. The thunderbird can grant resistance to lightning damage to anyone riding it.
Storm Bringer. The thunderbird’s innate spellcasting ability is Wisdom (DC 16 save). The thunderbird can innately cast the following spells, requiring no material components:
At Will: feather fall, gust of wind, thunderwave
3/day: call lightning, wind wall
1/day: control weather
Actions
Multiattack. The thunderbird makes two attacks: one with its beak and one with its talons.
Beak. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 14 (2d6 + 5) piercing damage.
Talons. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 17 (2d10 + 5) slashing damage.