Sources
CR
Type
Size
Alignment
Movement

Zakya Rakshasa

Medium Fiend, Lawful Evil

Armor Class 18 (scale mail, shield)
Hit Points 59 (7d8 + 28)
Speed 30 ft.
STR
18
+4
DEX
14
+2
CON
18
+4
INT
12
+1
WIS
13
+1
CHA
11
+0
Skills Athletics +7, Perception +4
Damage Vulnerabilities piercing, from magic weapons wielded by good creatures
Damage Resistances bludgeoning, piercing, slashing, from nonmagical attacks
Senses darkvision 60 ft., passive Perception 14
Languages Common, Infernal
Challenge 5 (1,800 XP)

Traits

Limited Magic Immunity. The rakshasa can't be affected or detected by spells of 1st level or lower unless it wishes to be. It has advantage on saving throws against all other spells and magical effects.

Magic Weapons. The rakshasa's weapon attacks are magical.

Martial Prowess (1/Turn). When the rakshasa hits a creature with a melee weapon attack, the attack deals an extra 11 (2d10) damage of the weapon's type, and the creature must make a DC 15 Strength saving throw. On a failure, the rakshasa can push the creature up to 10 feet away from it, knock the creature prone, or make the creature drop one item it is holding of the rakshasa's choice.

Spellcasting

Innate Spellcasting. The rakshasa's innate spellcasting ability is Charisma (spell save DC 11). The rakshasa can innately cast the following spells, requiring no material components:

At will: detect thoughts, disguise self

1/day: shield

Actions

Multiattack. The rakshasa makes three melee weapon attacks. Alternatively, it can make two ranged attacks with its javelins.

Longsword. Melee Weapon Attack: +7 to hit, reach 5 ft., one target. Hit:8 (1d8 + 4) slashing damage, or 9 (1d10 + 4) slashing damage if used with two hands.

Javelin. Melee or Ranged Weapon Attack: +7 to hit, reach 5 ft. or range 30/120 ft., one target. Hit:7 (1d6 + 4) piercing damage.

Lore

Millions of years before the rise of the humanoid races, the rakshasas of Eberron ruled a civilization that spanned Khorvaire. Masters of combat, the rakshasas of Eberron wield their weapons with demonic fury, rushing into battle seeking vengeance against those who bound their fiendish masters.