Wizards' first attempt at a legendary bear was Goreclaw, Terror of Qal Sisma, a great standalone card that doesn't really incentivize you to build a deck full of Grizzly Bears and all the underwhelming variants
Three colors that aren't green can be hard to play with , so most of the artifacts are mana rocks that provide some colored mana
According to Scryfall , a popular MTG database, there are roughly 29,170 unique card names in paper
Collector's Vault BPhillipYork: The way this card interacts with Containment Construct and Currency Converter and Conspiracy Theorist is awesome, it's card selection which is useful but expensive in terms of mana, but if you bolt several of these pieces together it can become a really effective card advantage engine with treasure generation
2021-06-18 If the second triggered ability is countered, the card can't be cast
That being said, it still throws me for a loop that Magic: The Gathering has crossed over with Hatsune Miku