Gargantuan Monstrosity, Unaligned
Armor Class 15 Initiative +8 (18) Hit Points 248 (16d20 + 80) Speed 20 ft., Fly 120 ft.
Saving Throws Str +9, Dex +4, Con +5, Int −4, Wis +4, Cha −1
Skills Perception +8
Senses Passive Perception 18
Languages None
Challenge Rating 11
The roc makes two Beak attacks. It can replace one attack with a Talons attack.
Melee Attack Roll: +13, reach 10 ft. Hit: 28 (3d12 + 9) Piercing damage.
Melee Attack Roll: +13, reach 5 ft. Hit: 23 (4d6 + 9) Slashing damage. If the target is a Huge or smaller creature, it has the Grappled condition (escape DC 19) from both talons, and it has the Restrained condition until the grapple ends.
If the roc has a creature Grappled, the roc flies up to half its Fly Speed without provoking Opportunity Attacks and drops that creature.