Legendary Resistance (1/Day). If the lich fails a saving throw, it can choose to succeed instead.

Spellcasting. The lich is an 9th-level spellcaster. Its spellcasting ability is Intelligence (spell save DC 18 +11 to hit with spell attacks). The lich has the following wizard spells prepared:

Cantrips (at will): Chill Touch, Mage Hand, ray of frost

1st level (4 slots): Ray of Enfeeblement, Shield, Witch Bolt

2nd level (3 slots): darkness, Hold Person, Scorching Ray

3rd level (3 slots): animate dead, counterspell, dispel magic, fireball

4th level (3 slots): blight, dimension door Ice Storm

5th level (3 slots): cloudkill, Cone of Cold, Wall of Force

• Magic Resistance: Zal'gath has advantage on saving throws against spells and other magical effects.
• Spellcasting: Zal'gath can cast spells from his spell list as a 9th-level spellcaster.
• Paralyzing Touch: Zal'gath's touch can paralyze a creature. The target must succeed on a DC 15 Constitution saving throw or be paralyzed for 1 minute. The target can repeat the saving throw at the end of each of its turns, ending the effect on a success.
• Undead Fortitude: If Zal'gath takes damage that would reduce him to 0 hit points, he can make a Constitution saving throw (DC equal to the damage taken). On a success, he drops to 1 hit point instead.

Legendary Actions: Zal'gath can take up to 3 legendary actions at the end of each player's turn, choosing from the following options:

• Cast a spell from his spell list.
• Move up to half his movement speed without provoking opportunity attacks.
• Make a melee attack with his staff.