Teamfight Tactics is introducing a new Collector’s Bounties system that is aimed at the wealthiest of players. To roll the Collector’s Bounties, you’ll need to cough up 450 Treasure Tokens (approximately $17 USD). In order to guarantee you hit the Prestige skin you’ll need to roll at least 30 times.
Because some people aren't idiots, they are gamblers with a real addiction. If you had a gambling addiction today or were part of a vulnerable group with no other outlets this game would bleed them dry and leave them with nothing of value they can sell later when they hit rock bottom. It's not morons we care about, it's addicts.