Rubblebelt Stalker

Medium Humanoid (Any Race), Chaotic Neutral

STR
10 (+0)
DEX
15 (+2)
CON
12 (+1)
INT
10 (+0)
WIS
14 (+2)
CHA
8 (-1)
Ambusher.

In the first round of a combat, the stalker has advantage on attack rolls against any creature that hasn't taken a turn yet.

Nimble Escape.

The stalker can take the Disengage or Hide action as a bonus action on each of its turns.

Ruin Dweller.

The stalker has advantage on Dexterity (Stealth) checks made to hide in ruins, and its speed is not reduced in difficult terrain composed of rubble.

Siege Monster.

The stalker deals double damage to objects and structures.

Actions

Multiattack.

The stalker makes three attacks with its shortsword.

Shortsword.

Melee Attack Roll: +4 to hit, reach 5 ft., one target. Hit: 5 (1d6 + 2) piercing damage.

Find this creature in the encounter builder

Rubblebelt Stalker

Source: Guildmasters' Guide to Ravnica, p. 239 - Licenses and attribution