Rick and Morty is the latest Adult Swim cartoon to have gained a large following of audience members, at least a couple of which must work at Valve. The pack which can be purchased on the steam store right now for $7.99, replaces the Narrator and the Megakill announcer with the voices of the Rick and Morty show's protagonists of the same name. To give you an idea of what the game will sound like with the new voice work, a teaser has been posted on the Dota 2 channel.
This isn't the first announcer pack to become available for Dota 2, the store is full of them. Some of the more popular ones are the narrator from The Stanley Parable and the Portal pack.
From the official store page:
This pack replaces the Default announcer and Mega-Kills announcer with the interdimensional mischief of Adult Swim's Rick and Morty.
To read the latest guides, news, and features you can visit our Dota 2 Game Page.