Giant Skeleton

Huge Undead, Neutral Evil

STR
21 (+5)
DEX
10 (+0)
CON
20 (+5)
INT
4 (-3)
WIS
6 (-2)
CHA
6 (-2)
Evasion.

If the skeleton is subjected to an effect that allows it to make a saving throw to take only half damage, it instead takes no damage if it succeeds on the saving throw, and only half damage if it fails.

Magic Resistance.

The skeleton has advantage on saving throws against spells and other magical effects.

Turn Immunity.

The skeleton is immune to effects that turn undead.

Actions

Multiattack.

The skeleton makes three scimitar attacks.

Scimitar.

Melee Weapon Attack: +8 to hit, reach 10 ft., one target. Hit: 15 (3d6 + 5) slashing damage.

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Giant Skeleton

Source: Tales from the Yawning Portal, p. 236 - Licenses and attribution