This might not seem like it's all that useful, but there are all sorts of triggered abilities that go off on upkeep, like Suspend cards losing counters, and coming in more quickly
Marrow-Gnawer works particularly well with Rat Colony and Relentless Rats, as you will start growing your board relative to the number of rats you control while also pumping each of your remaining Colonies
Pokemon XY Breakthrough Elite Trainer Box (Mewtwo X)
Gold Stars were a separate EX-era mechanic from 2004 to 2007, marked by a gold star next to the Pokemon's name and shiny alternate-color art, illustrated by Masakazu Fukuda and pulled at roughly one per two booster boxes, around one in 72 packs
Gallery of Legends (acorn) Artifact Attraction Visit Exile cards from the top of your library until you exile a nonland card, then choose a legendary creature card name with the same mana value as that card
cards: This Character gains [Rush] during this turn
