This article contains lore created collaboratively by the Blaseball community. It is just one of many Rumors that we've found in the Interdimensional Rumor Mill. You can find more Rumors about Concrete Mandible at their Rumor Registry.
Concrete Mandible is a batter and lineup player for the Tokyo Lift. They’ve been a Blaseball player for the majority of their conscious lifespan. Little is known about the manner and reason behind Mandible’s exact origins, beyond simply the location they were discovered. They claim their earliest memory to be waking up in what might have been a forest, observed by the entity they would later come to know as Freemium Seraph. Whether Mandible was born from pure Earthen magic, was awoken via the effects of a meteorological anomaly, was animated from the sidewalk outside the Tokyo Lift’s home stadium by the sheer competitive energy of the game, or came into being by some other means entirely, their existence now is certain- if possibly the only certain fact of their origin.
Tall and hulking even in comparison to many of their Lift teammates, Mandible appears to be a large construct made of an indeterminate type of stone/rock-like material, with strangely insectoid elements of their joints and facial structure. They have been primarily referred to, both as a self-descriptor and by other members of the Lift, as an Earth Elemental, although Mandible admits to uncertainty regarding the accuracy of that term.
Some have suggested the rock-like material is concrete, a reference to Mandible’s name, but basic geological analysis of Mandible’s physical makeup has left only questions about the exact nature of the material. It has been suggested that Mandible is, quite possibly, made up of some sort of yet-unknown Earthen mineral. When asked about it, they simply replied, “I don’t know, I’ve never really asked too much about it. People don’t go around asking why they’re made of people, do they? I figure it’s the same for me. I’m made of rocks, that much I understand. Everything else is…… sedimantics.” They did, when reporting this, laugh at their own joke.
Both Mandible and their teammate Freemium Seraph have garnered the attention of their team and Lift fans over the years of their respective careers for having what’s been called their “lucky streak.” Known around the league as a sort of dynamic duo, Mandible and their fellow elemental Seraph have endured lengthy Blaseball careers seemingly unscathed by the unpredictable and destructive nature of the game’s weather effects. Having been on the same team together since the beginnings of their league and underleague records, they’ve managed to avoid having their lineup positions changed, being swapped to other teams via feedback, and being targets of any rogue umpires’ incinerations. While rumors of a few close calls and thwarted attempts to break this streak exist, no evidence can be found to prove these claims, and no visible damage exists on either of the pair that might suggest near-misses with umpires or other prevalent hazards.
Several of their teammates and other ILB players and fans have commented that it would be ‘weird’ or ‘strange’ to see Mandible and Seraph playing on different teams, citing the fact that neither one of them has ever been seen on the field without the other.
Mandible, known to their teammates as a fun-loving, ultra-competitive player, is rumored to be willing to accept nearly any type of challenge set before them, particularly if it comes in the form of a game. Notably, their biggest opponent is usually Mandible themself, as one of their favorite hobbies involves setting personal records and then breaking them. Mandible has been described as a “nightmarish” board game partner, not because of cruelty or a lack of respect for the rules, but because of the stubborn and delighted frequency with which they demand rematches, regardless of whether or not they were the winner.
In line with their competitive nature, Mandible’s signature pregame ritual has been reported as ‘surgery’, which is a slight misinterpretation of the fact that Mandible can usually be found playing ‘Operation’ before a Blaseball game. It’s mostly beneficial for helping Mandible steady their hands and narrow their focus before they’re up to bat -- although they admit that Operation itself has its own sort of thrill.
When asked if they’d ever considered other sports besides Blaseball, they reported having also considered, among many things: competitive darts, ski jumping, cup stacking, and Jenga. Ultimately, the wide reach of Blaseball proved to be a fantastic fit for Mandible’s career aspirations, quoted to be “..to play a game [they] love, with awesome people, for as long as [they] can swing it. ‘It’ being the bat, of course.”