Effects that modify a creature's power and/or toughness, such as the effect of Overprotect, will apply to the creature no matter when they started to take effect
Some cards reward you for putting +1/+1 counters on themselves or other creatures, most notably Danny Pink, Basking Broodscale, and Scurry Oak
The difference would be that the black borders would be on the top and left, and this Vanguard filler would contain the word "blank"
While draw power is everywhere in the Pokemon TCG, having an additional draw option as you end your turn can actually be great
For that reason, Ill mention a trio of cards that filter the top of your library for historic cards here: Weatherlight, Board the Weatherlight, and Monumental Henge
It was a long time ago, but were talking early Obama years, not when Friends was a new show