The rarity of Tank of the Manta Marauder is Mythical. At this moment the item is available for trade.
Tank of the Manta Marauder is a skin for Batrider. The skin was added to the game on May 16, 2017, it was created by DNADota.
Tank of the Manta Marauder has been recently added to the game, which makes it rather popular with the game community.