Many players prefer to finish the game as quickly as possible. They have to attack an opponent to achieve this goal and sometimes ignore his the creatures on the board. That is why the curve of your deck should have mostly 0,1,2 and 3-cost cards. If you build aggressive decks you will pay attention to the individual characteristics of creatures and their individual buffs by another cards. As for the individual characteristics of creatures, you should pay attention to the power of it and unique summon bonus effect. In aggro decks all unique summon bonus effects are directed on dealing damage to opponent (
The most popular keywords in aggro decks are keyword Charge and keyword Breakthrough. You will play creatures with keyword Charge to attack your opponent right away after summoning this creature. Sometimes they will also have keyword Breakthrough and will deal damage even when the opponent plays Guards. But you must be very careful when you destroy opponents rune and give him an extra card especially if this card has keyword Prophecy and he plays it for free.
There are a lot of aggro decks which use cards with Strength Attribute. First of all they are strong because of a lot of individual cheap Items like
You can also use the cards with Intelligence Attribute in aggro decks.
This is an example of budget aggro Battlemage deck:
As you can see you do not need a lot of resources to create this fast aggressive deck.
In Aggro decks Willpower and Agility Attributes are not so important because there are no aggressive early game cards and most of all are very slow.
There are some aggressive cards with Endurance Attribute and you can play Orcs ( to have an aggressive synergy. Also there are some cards with Breakthrough (
Here is the example of aggro orc Warrior deck:
As you can see there are a lot of orcs in this fast deck and they give each other some synergy and you will create a powerful board and deal damage to your opponent.
So it is very easy to play aggro decks but sometimes you should chose a right decision: to deal damage to your opponent or to trade on the board.