Action Blocks is a tool to create blocks of information and facilitate your day to day life. All you have to do is set up each of these cards to link certain actions allowing you to make calls, send a text or play multimedia content much faster -- right from your home screen.
You should take into account that the way Action Blocks works is via Google Assistant. In this sense, you can also opt to sync up your Android's microphone to communicate the tasks you want carried out without the need to so much as even tap on your smartphone.
Another nice part of Action Blocks is that it provides a ton of different options straight from the main menu. For example, you can create cards with frequent contacts to link several phone numbers and an ID photo. On the other hand, you can also add program alarms, open up Youtube videos or send a text message with a preset message to any given contact.
Action Blocks is a good option to set up certain cards enabling you to manage tasks on your smartphone quickly. In that sense, all you have to do is adapt each block to your liking in order to set up a completely customized home screen.