SCP-737

Summary
SCP-737 is a wooden locomotive that is currently 5cm tall and 4cm thick. X-ray analysis has revealed that the wooden portion of SCP-737 is an outer shell, protecting a small brain and biological tissue that make up its actual body. When SCP-737 reaches an obstacle it will absorb the material directly in front of it and incorporate it into itself. SCP-737 has the ability to absorb any material within 5 to 20 seconds. If SCP-737 can't incorporate a material into itself for some reason it will emit a toxic gas from it's chimney. SCP-737 is likely vulnerable to damage, as the wood that comprises its outer shell shows no anomalous properties. SCP-737 is unwilling to absorb copper, even though it does have the capacity to do so.

Powers and Stats
Tier: 10-C

Powers and Abilities: Absorption, Size Manipulation (Grows in size as it absorbs more material), Poison Manipulation (Creates a toxic gas when absorbing copper)

Attack Potency: Below Average Human level, Its effect ignores conventional durability

Speed: Unknown, Possibly Peak Human

Lifting Strength: Unknown

Striking Strength: Unknown

Durability: Below Average Human level

Range: Below standard melee range

Standard Equipment: None

Intelligence: Unknown

Weaknesses: Can only harm things when they are in direct contact with the front carriage, Denser materials take longer to absorb, Refuses to absorb copper (Though it has the capacity to do so), Cannot right itself if it is flipped over