Large construct,
Armor Class: 15
Hit Points: 10 + 5 times your character level (the deployed mech has a number of Hit Dice [d8s] equal to your character level)
Speed:
30 ft
Damage Immunities: poison
Condition Immunities: charmed, exhaustion, frightened, paralyzed, petrified, poisoned
Senses: darkvision 60 ft., passive Perception 10
Languages: understands the languages you speak
Immutable Form
The mech is immune to any spell or effect that would alter its form.
Actions
Slam
Melee Weapon Attack: +4 to hit, reach 5ft., one target. Hit (2d4 + your character level) bludgeoning damage