The cards you can turn into creatures have to cost more than four mana, and Bello costs three, so you need Bello to stick around for a bit and you have to have several enchantments in play to really keep the pressure up
A First Look at Wilds of Eldraine This fall, return to the land of fairy tales, knights, and witches in Wilds of Eldraine
Yes, graded Sword and Shield cards sell for more, but only if the grade is high
Arahbo, Roar of the Wild
This particular card also allows for passive damage, as whenever one or more artifact creatures you control attack, it deals X damage to any target, and you also scry X (where X is the number of tapped artifacts you control) so you can additionally get to your cooler cards faster
Does the Forecast Card Have to Be in Your Hand