I’d swap that space for an Oranguru (SUM) for draw, but based on what
@Otaku said, which I believe to be true, I’d go with the ever-uncommon GRI Alolan Sandslash line. Drawing a single extra card is surprisingly good, and it’s an ability.
The card itself? It can actually be the star of a mill deck, considering if you just played a bunch of items from your hand to mill your opponent, you can now get a fresh new hand of 5. On that note, Palkia GX from ULP can do the same thing, but without damage but an extra card and worth 2 prizes but more HP. It’s up to the player to decide which one is better, because they’re pretty evenly matched.
Most of us skip over these, it’s nice of you to give this old pal a spot in the spotlight.