More established trading card games like Magic: The Gathering have shared a lot of card info to help identify real cards
Jace, Vryns Prodigy / Jace, Telepath Unbound While being mono-blue is somewhat limiting for deckbuilding options, Jace, Vryn's Prodigy offers great versatility
With two copies out, you can get three unblockable creatures through with Double Strike every turn
The last advantage is that Rat Colonys power boost counts all other rats in play, including Verminister and its tokens, Marrow-Gnawers brood, and so on
It's also another creature in your graveyard on top of Haunted Dead and Scrapheap Scrounger that you can use to bring Prized Amalgam back onto the battlefield
The latter are interested in cheap bodies that do a thing for sacrifice purposes and flicker decks are all about getting good ETBs over and over to outgrind opponents