Holocron

SD-K4 Assassin Droid

Large droid · CR 4
sizeLargecr4
SD-K4 Assassin Droid
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A spider-legged Separatist killer that opens with a lethal surprise strike and spews a swarm of probe killers when destroyed.
Lurker
How to run itOpen from hiding for an Assassinate crit on a surprised PC, stack Sneak Attack with advantage, and drop its probe-killer swarm via Second Chance when it dies.

The SD-K4 assassin droid, also known as the assassin probe, is a model of assassin droid manufactured by the Techno Union. Used by the Confederacy of Independent Systems during the Clone Wars, it was also referred to as the Separatist assassin probe and Separatist assassin droid.The SD-K4 assassin droid is designed to assassinate targets with high efficiency. Spider-like droids programmed for quiet killing, SD-K4s move quietly on eight razored legs. They are equipped with multiple red photoreceptors for scanning their surroundings. If cornered or destroyed, an SD-K4 can release dozens of smaller probe killers from pores on its head to finish any job the assassin probe started. Probe killers, similar in appearance to their SD-K4 host but on a much smaller scale, lay dormant until the activated.

Armor Class 15 · Hit Points 45 (6d10+20) · Speed 5 ft., fly 40 ft.

STR DEX CON INT WIS CHA
15 17 14 15 14 7

Assassinate (Trait). During its first turn, the assassin droid has advantage on attack rolls against any creature that hasn't taken a turn. Any hit the assassin droid scores against a surprised creature is a critical hit.

Circuitry (Trait). The droid has disadvantage on saving throws against effects that would deal ion or lightning damage.

Keen Hearing and Sight (Trait). The probe droid has advantage on Wisdom (Perception) checks that rely on hearing or sight.

Sneak Attack (Trait). The assassin droid deals an extra 7 (2d6) damage when it hits a target with a weapon attack and has advantage on the attack roll, or when the target is within 5 feet of an ally of the assassin that isn't incapacitated and the assassin doesn't have disadvantage on the roll.

Swarm Transport (Trait). The assassin droid can transport a maximum of 1 Probe Killer Swarm, which it can deploy using its Deploy Probe Killers action.

Multiattack (Action). The sssassin droid makes two leg slash attacks.

Leg Slash (Action). Melee Weapon Attack: +6 to hit, reach 5 ft., one target. Hit: 7 (1d8+3) kinetic damage.

Deploy Probe Killers (Action). This droid swarm appears in any space within 5 feetof the assassin droid.

Second Chance (Reaction). When the droid reaches zero hit points, it may immediately take the deploy probe killers action.