Armor Class 19 (natural armor)
Hit Points 225 (18d12 + 108)
Speed 40 ft., fly 80 ft., burrow 30 ft.
Saving Throws DEX +6, CON +12, WIS +8, CHA +10
Skills Perception +14, Stealth +6
Damage Resistances necrotic
Damage Immunities lightning, poison
Condition Immunities charmed, exhaustion, frightened, paralyzed, poisoned
Senses blindsight 60 ft., darkvision 120 ft., passive Perception 24
Languages Common, Draconic
Challenge 17
Legendary Resistance (3/Day). If Zikzokrishka fails a saving throw, it can choose to succeed instead.
Magic Resistance. Zikzokrishka has advantage on saving throws against spells and other magical effects.
Multiattack. Zikzokrishka can use its Frightful Presence. It then makes three attacks: one with its bite and two with its claws.
Bite. Melee Weapon Attack: +13 to hit, reach 10 ft., one target. Hit: 18 (2d10 + 7) piercing damage plus 5 (1d10) lightning damage.
Claw. Melee Weapon Attack: +13 to hit, reach 5 ft., one target. Hit: 14 (2d6 + 7) slashing damage.
Tail. Melee Weapon Attack: +13 to hit, reach 15 ft., one target. Hit: 16 (2d8 + 7) bludgeoning damage.
Frightful Presence. Each creature of Zikzokrishka's choice that is within 120 feet of the Zikzokrishka and aware of it must succeed on a DC 18 Wisdom saving throw or become frightened for 1 minute. A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success. If a creature's saving throw is successful or the effect ends for it, the creature is immune to the Zikzokrishka's Frightful Presence for the next 24 hours.
Lightning Breath (Recharge 5–6). Zikzokrishka exhales lightning in a 90-foot line that is 5 feet wide. Each creature in that line must make a DC 20 Dexterity saving throw, taking 66 (12d10) lightning damage on a failed save, or half as much damage on a successful one.
Detect. Zikzokrishka makes a Wisdom (Perception) check.
Tail Attack. Zikzokrishka makes a tail attack.
Wing Attack (Costs 2 Actions). Zikzokrishka beats its tattered wings. Each creature within 10 feet of Zikzokrishka must succeed on a DC 21 Dexterity saving throw or take 14 (2d6 + 7) bludgeoning damage and be knocked prone. After beating its wings this way, Zikzokrishka can fly up to half its flying speed.
CM, p. 209