Wondrous Item, very rare
Autonomous Research Assistant
Medium construct
 
Armor Class 15 (natural armor)
Hit Points 2 + your Intelligence modifier + five times your artificer level (the defender has a number of Hit Dice [d8s] equal to your artificer level)
Speed 40 ft.
 
STR DEX CON INT WIS CHA
12 (+1) 14 (+2) 14 (+2) 4 (-3) 10 (+0) 6 (-2)
 
Saving Throws Dex +1 plus PB, Con +2 plus PB
Skills Athletics +2 plus PB, Perception +0 plus PB × 2
Damage Immunities poison
Condition Immunities charmed, exhaustion, poisoned
Senses darkvision 60 ft., passive Perception 10 + (PB × 2)
Languages understands the languages you speak
Challenge — Proficiency Bonus equals your bonus
 
Working in your Research Cluster

Whenever the Assistant might need to an intelligence check and can hear the Academic, the Assistant uses the academic's INT bonus, rather than its own.

Actions (Requires Your Bonus Action)
 

Lend a Hand (3/day)

The assistant is such a good colleague that they sometimes point out errors, before you make them. On a failed skill check, re-roll the check and keep the 2nd result.

Repair (3/Day). 

The magical mechanisms inside the assistant restore 2d8 + PB hit points to itself or to one construct or object within 5 feet of it.

Reactions
Protecc. 

The defender imposes disadvantage on the attack roll of one creature it can see that is within 5 feet of it, provided the attack roll is against the Academic.

 
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