That is all standard fare of a subscription within a free to play game, but where things get odd are with the addition of "Plus Assistant". Traditionally the Battle Pass was broken into two types, one that revolved around the Majors, and one that revolved around The International. It's $3.99 for one month, with a 6% discount for a 6 month sub and a 12% discount for a 12 month sub.
Dota 2 is no stranger to subscriptions, also known as Battle Passes.
Dota Plus subscribers will also have access to a "Death Summary" screen providing "a second-by-second timeline of incoming damage, stuns, and other disabling effects" in real-time, and a "Lane Strategy" feature with team-wide suggestions for lane configurations. According to the announcement, Dota Plus will be "a new monthly subscription service created to help you get the most out of every match you play".
KitGuru Says: If you are a serious, competitive Dota 2 player, then the additional data Plus subscribers gain access to seems quite valuable. Sarcasm aside, let's go over what Dota Plus has to offer real quickly. You'll be able to buy time blocks for Dota Plus so that you don't need to worry about recurring subscription fees too.
First off, there's hero leveling. The subscription will cost you $3.99 per month and offers Hero Leveling, so as your progress with a hero you get Reward Shards and new chat wheel responses; Hero-specific challenges to get more XP for leveling up your hero; Hero Relics, see Achievements; as well as a weekly reward and new Plus-exclusive items. Those suggestions will be based on data taken from millions of recent games at each skill bracket-and if you decide to go in a different direction, a GPS-style "recalculate" button will bring up new suggestions based on your current inventory.