Its second ability lends to control and burn
After all, having Mistys Goldeen is way cooler than having Goldeen on its own
Before I walk you through exactly how to conduct a trade, however, there's some quick rules I want to cover
A year ago, in a Khans of Tarkir Standard dominated by many of the same decks (Jeskai, Abzan, UBx Control) and cards (Siege Rhino, Mantis Rider, Wingmate Roc), there were two decks that cost less than $115 (UW Heroic and Mono-Red Aggro) and only a single deck that cost more than $400 (Abzan Midrange)
A 1/2, at the end of each turn, Tinybones's controller is able to draw a card and lose one life if an opponent discarded a card that turn, allowing it to function as a reliable card draw