When comparing Vainglory vs Hearthstone: Heroes of Warcraft, the Slant community recommends Vainglory for most people. In the question“What are the best Android / iOS cross-platform multiplayer games?” Vainglory is ranked 1st while Hearthstone: Heroes of Warcraft is ranked 8th. The most important reason people chose Vainglory is:
For a mobile MOBA having 32 characters to choose from is not too shabby, which gives a nice level of choice to the player as well as stretches the content of the game for those that want to learn and customize each one.
Specs
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Pros
Pro 32 available heroes
For a mobile MOBA having 32 characters to choose from is not too shabby, which gives a nice level of choice to the player as well as stretches the content of the game for those that want to learn and customize each one.
Pro Works well on tablets
Tablets, with their larger screens allow for a good sense of control over the game, which makes Vainglory something that plays best on larger screens devices due to how much is happening on the screen.
Pro Cross platform Android and iOS support
Vainglory is available for Android devices through the Google Play Store, and the App Store for iOS tablets and phones. Users on both platforms are able to play together.
Pro Active community
It has a lot of players due to Blizzard's fanbase which means finding multiplayer matches is not all that difficult.
Pro Polished overall aesthetic
Possibly the most polished user Interface of digital CCGs. Unified and fun art style and flavor text.
Pro Great even for casual players
Hearthstone has a friendly learning curve that makes picking it up and getting started easy for people who don't want to spend a lot of time learning rules and tricks.
Pro Multi-platform
Available on PC and on mobile. Makes a great commute companion (provided you have internet).
Pro Familiar characters from Warcraft 3 and World of warcraft
The characters used in Hearthstone are all from the lore of the Warcraft series, making for a familiar universe for fans of the series.
Pro Brawl events, that don't require you to follow "the meta"
You can take advantage of weekly brawl events that give you a certain set of cards (so no need to pay to stay competitive). It keeps the game fresh, fun and fairly "casual".
Pro Entertaining Voice Acting
The voice work really adds to the game and makes it entertaining to play.
Pro Card Balances and Game Updates Often
The Hearthstone team is always looking at their data and community reaction towards cards and the state of the game, and they have made many card and game changes/updates to balance and improve the game for all players.
Pro You won't be cursed at in the chat.
Interaction with opponent limited to simple pre-made phrases, so you don't have to see how many 1337 gamers had their way with you or your mother. Or deal with the spam about free decks, new hacks etc.
Pro Near-perfect balance between going first or second
There's no significant first-turn or second-turn advantage in Hearthstone. The player going second gets an extra card from his deck as well as "The Coin", a card that gives one extra mana crystal for one turn. This subverts the advantage that would be gained otherwise by the player going first.
Pro Free to play that doesn't exploit
Yes it's free to play, but it's designed to easily continue to play and have fun without having to feel like you HAVE to pay. At the same time, after playing a while you'll probably want to.
Pro Great if you don't take it too seriously
HS is meant to be fun, lighthearted, and generally casual. It requires a lot of time and money investment if you wish to play seriously.
Cons
Con No longer supported, Community edition only available
Vainglory devs lost their servers and released a Community Edition, which is currently on pause development-wise. The game has been pulled from Steam, Samsung, and Amazon platforms, and is only available on iOS App Store and Android Play Store. Developers intend to get back to the game in the future, but there's no definite timeline.
Con Playing as a team in person is a huge advantage
Due to how difficult it is to communicate with other online team members the easiest method to get that communication working is to just play together in person. Of course this gives an advantage to those that do so.
Con Huge Money Sink
Although you can "technically" play for free, Hearthstone is very stingy on rewards. To get the limit of 100 paltry coins free a day, you have to win 30 games vs mostly players who have much better cards than you. It can take a new player 6 to 8(or more) hours to accomplish this. And after all this you get a pack of 5 cards that are often completely worthless to any viable deck. It's possible to get cards like "Angry Chicken"(worthless card) as the "Rare" card several times. You can also get a bunch of cards you already have a lot of.
Con Many mechanics based on random numbers
Random effects in the game use a random number generator, which causes an uncertainty of all outcomes. This causes one or both players to be frustrated because they can lose an already won game despite playing to the best of their ability.
Con The reward system is not significant enough
Hearthstone's reward system is very lackluster, providing little to nothing of significance to the casual or excessive player. There will be times when you feel heavily rewarded by the game, but these times are few and far between and if you are driven by rewards you will likely lose attraction to this game quickly.
Con Lacking a lot of depth found in better TCGs
Con Crafting is expensive
In lieu of trading cards, this game uses a disenchanting/crafting system to handle duplicate copies in your collection and being able to obtain the cards you want. Many cards disenchant for paltry amounts, and the best cards cost lots of "dust" to be able to play with.
Con Luck is more rewarding than skill.
When you lose a game in Hearthstone you don't learn anything because you generally can't play around most of the cards, most of the cards have random effects you have no control over it whatsoever.
Con Additional "Cards" must be paid for if not earned by continuously playing
There is a bit of a grind in earning new cards, so for those that do not want to spend the large amount of time needed to earn quality cards they will need to be purchased, which can get expensive.
Con Dependent on Battle.net infrastructure, not playable offline
The game requires a connection with Battle.net servers from the developers, and thus can't be played offline.
Con Ridiculously bloated
Over 4 GB data installed on ones device. Which is quite a lot of room, something many might not have to spare.
Con No trading with other players
Con The discover mechanic alone ruined this game
Luck tends to be more important than skill: there are numerous RNG-based cards in this game. Players that care about skill are better of playing other games, like Magic.
Con Simplistic and unintuitive card design
Very little mechanical depth, most of the complexity is based on random numbers.
Con Sometimes unfair matchmaking
Sometimes players will be matched up with people who clearly have been playing longer.
Con Poor port
Plays much better on PC. Sluggish and crashes often on mobile, sometimes connections can be difficult to make as well.
Con Chinese money > Freedom of speech
Blizzard WILL sell your soul to the chinese overlords for a couple sheckels. DO NOT play this game if you care about freedom of any kind. There are many other CCG out there. Have some dignity and principles.