Yes, graded Sword and Shield cards sell for more, but only if the grade is high
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
Brawl Not Legal Vintage Not Legal Timeless Not Legal Commander Not Legal Pauper Not Legal Oathbreaker Not Legal Penny Not Legal Aggressive Crag Land At the beginning of your combat step, tap Aggressive Crag
Anytime an opponent casts any spell, you amass Orcs for 1, constantly giving you a creature to sacrifice or a massive one to attack with
You are ready to become a knight, I believe
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