Although Tyrantrum are large pokemon and their jaws contain awesome, destructive power, few trainers have succeeded in translating their raw talent into success in battle. This is primarily because Tyrantrum in their own time were an unchallenged apex predator, rarely engaged in intraspecies competition, and were capable of defeating foes such as Archeops and Aurorus with a fighting style based around raw size and strength; against modern threats, such as Garchomp or Tyranitar, this approach typically leaves them outmatched.
Many Tyrantrum trainers give up in frustration and release their pokemon into an unprepared wild. These Tyrantum gather around fossil fuel deposits, and sabotage resource extraction efforts to protect the graves of their chronological brethren; frustrated by constant defeat in battle, they consider themselves to only be kings of the past. But few of these Tyrantrum remain wild for long, for in a world where most pokemon adapt quickly to any tactic, and innate abilities often outweigh tactical acumen in determining a match's outcome, teaching a Tyrantrum how to win is thought to be the ultimate task in pokemon training – a feat greater than any League title. Ambitious trainers always recapture them, and stubborn as ever, the Tyrantrum try to learn to fight like, and triumph over, the large and powerful pokemon of our era.
Tyrantrum today have yet to make the world fear them, but they are far more often victorious now than when first resurrected, and many experts predict that one will be found on a Kalos League Champion's team within this decade.