The Siege Titan

Unyielding Colossus: The Siege Titan is Indestructible and cannot be removed from the board unless banished by a unique effect.
Siege Engine: When attacking a fortified hex, ignore all fortification bonuses (such as defense boosts or extra Supply costs for entry).
Titanic Movement: The Siege Titan moves once every two rounds instead of every turn due to its immense size.
Neutral Until Claimed: Any player that moves into the Titan’s hex and pays 5 Supply gains control of it until defeated in battle. I