Silvia Rugrat
From Blaseball Wiki
Untethered from time, Silvia Rugrat is both a little baby and a nightclub singer in 1930s Chicago. It is this temporal nonlinearity which makes/made/will make Silvia such a good pitcher for such a small baby.
Early/Mid/Late Life
Silvia Rugrat is/was/will be a player for the Mexico City Wild Wings.