Roc

Gargantuan monstrosity, unaligned

Armor Class 15 (natural armor)
Hit Points 248 (16d20 + 80)
Speed 20 ft., fly 120 ft.

STR DEX CON INT WIS CHA
28 (+9) 10 (+0) 20 (+5) 3 (−4) 10 (+0) 9 (−1)

Saving Throws Dex +4, Con +9, Wis +4, Cha +3
Skills Perception +4
Senses passive Perception 14
Languages --
Challenge 11 (7,200 XP)

Keen Sight. The roc has advantage on Wisdom (Perception) checks that rely on sight.

Actions

Multiattack. The roc makes two attacks: one with its beak and one with its talons.
Beak. Melee Weapon Attack: +13 to hit, reach 10 ft., one target. Hit: 27 (4d8 + 9) piercing damage.
Talons. Melee Weapon Attack: +13 to hit, reach 5 ft., one target. Hit: 23 (4d6 + 9) slashing damage, and the target is grappled (escape DC 19). Until this grapple ends, the target is restrained, and the roc can't use its talons on another target.