Blood Angels - Used

The Blood Angels are one of the first 20 First Founding Legions of the Space Marines. They are well known for their bloodthirsty nature in battle and tend to live the longest out of the current space marine chapters.

They have shooting like all space marines but tend to focus more on close combat and deep striking from reserves, as they are known to be bloodthirsty soldiers. They also focus on using jetpacks with their units to improve their mobility as an army.

First thing you will need is the Codex for your army which is a book supplement that gives you all the info you need to play and build the army as well as extra lore. In Blood Angels case you will need two codexes which are Codex: Space Marines, and Codex Supplement: Blood Angels as Blood Angels are a Chapter of the Space Marines. The Start Collecting/Combat Patrol boxes are a great choice to start your army because they save you a better amount of money than if you bought the contents separately. Unique units you can buy for the Blood Angels include Sanguinary Guard, Death Company, Baal Predator, and Furioso Dreadnought.

Commander Dante is the Chapter Master of the Blood Angels and is the longest living space marine that is not a dreadnought. There is also Astorath the Grim. He is the High Chaplain of the Blood Angels and is in charge of granting the Emperor's Peace to those who bear the gene-seed of the Primarch Sanguinius and have been overcome by the genetic Flaw known as the Black Rage.

The Blood Angels are a good army like most armies in Warhammer 40k. If you are seeking a competitive army, then the answer depends on the meta at the time, as every army has its ups and downs in the competitive community. Casual players should not worry about good/bad as it's all about fun.