Construct Alpha

Riverine Layering. On the outside of CA is a thin layer of Riverine, which allows it to reflect any attack that misses by half of its max AC.

Adamantine Hull. The main protection for CA is its adamantine hull.

Aurorum Underskin. Magically connected with the adamantine, it keeps it in place an acts as an repairing mechanism. CA recovers 30 HP per round.

Fyrite and Blue Ice Alloy. Through special processes the two materials could be combined to allow CA to absorb both heat and cold, making it effectively immun to them.

Mithral System. CA has advantage on saving throws against spells and other magical effects. Furthermore if it has five slots. These slots can be filled with spells that it absorbs as an reaction if he is targeted by one. Once CA absorbs a spell, it can use it a infinite amount of times for 24 hours. After that, the slot with that spell is automatically emptied. CA can also empty a slot as a bonus action. Its spell save DC is 26 and its spell attack bonus is +16.

Immutable Form. CA is immune to any spell that would alter its form.

Perpetuum Mobile. CAs power source are two dimensional rifts orbiting closely a tiny orb of annihilation. The tension between the three bodies create a lot of wild magic that is harnessed by CA. Therefore it has unlimited power. If Dispell Magic level 9 is cast on CA it will shut down for 1 round. If it is caught in an antimagic field, it will shut down until the magic field is gone. Aurorums healing properties remain, even when CA is powered down. The power core is there where a humans heart would be.

Robotic speed. CA rolls twice for initiative and has an action, bonus action and reaction for each one rolled, giving it two turns per round.

Multiattack. CA makes seven attacks in one round. Five with the repeating crossbow and two with the razor sword.

Razor Sword. Melee Weapon Attack: +16 to hit, reach 10 ft., 1 target. Hit: 36 (4d12 + 10) slashing damage. If CA rolls a critical with the razor sword, roll 1d6. Look in the table below to see the following effect:

1. Head is cut off. If the creature has only one head, the creature dies.

2. Left arm is cut off.

3. Left leg is cut off.

4. Right arm is cut off.

5. Right leg is cut off.

6. Body is split in half. The creature dies instantly.

Repeating Crossbow. RangedWeapon Attack: +16 to hit, range 300/600 ft., 1 target. Hit: 85 (10d10 + 30) force damage. The repeating crossbow fires special arrows, which are made with tiny bags of holding, so that by contact, one bag is pushed into the other one, creating a mini dimensional tear into the astral plane. This force is violent enough, that if the hit target does not succeed a DC 22 constitution check, a piece of their body is ripped off and sucked into the astral plane. If the save is failed, roll 1d6 and look at the table above to see which body part is hit. If the body part that was hit has armor, the armor is instead ripped off, leaving area unprotected for the next arrow.

If the target is medium, the amount of failed saving throws required to rip of armor and body parts are one. By tiny and small targets, one failed save is enough to instantly kill the target. Large targets require two failed saves for something to be ripped off, while huge needs four. Gargantuan depends on the dimensions of the creature and are up to the DM.

Absorb Spell. Absorbs a spell that would normally effect CA.