Mono Red Aggro has been a staple of the Standard format for many months, and it has a cousin in the Standard 2021 queue as well. This deck is all about ending the game as quickly as possible.
It does so by deploying cheap creatures that get in for early damage, but then have a much bigger impact by getting Embercleave out early. Another powerful card to use with cheap red creatures is Torbran, Thane of Red Fell. This deck can get aggressive very quickly and can be quite dangerous if left alone.
If you love having tons of tiny creature dealing a lot of damage to your opponent, you should definitely try this one out.