mtg cards like bloodletter of aclazotz (Damage causes loss of life.) The Lost Caverns of Ixalan (LCI) #92 Illustrated by Antonio Jos Manzanedo Magic Bloodletter of Aclazotz Alternatives -

It sacrifices itself on entry, but you can cast it from the graveyard via escape to turn it into a recurring threat

This policy has become especially popular in games or formats where some vital cards are far too expensive, such as the vintage format in Magic: The Gathering

cEDH Decks An common way to do this is to create an infinite mana combo for mana through cards like Isochron Scepter and Dramatic Reversal paired with some mana rocks

Royal Assassin becomes even more powerful when you introduce ways to tap your opponent's creatures, like Orb of Dreams, making it always viable

If this thing was a named legendary creature - even if it was a new version of that weird little rat Loot - it might feel like a mythic rare, purely on the basis that "cute little guys" is an established archetype for extremely rare and powerful creatures

Of course, if you do have some reason for the color to matter, that can easily outweigh this