Teppen differs from Hearthstone and many other similar games in that the battles here take place in real time. Both opponents start the match with four units of mana and five cards in hand, after which they either immediately play something, or wait until even more mana is accumulated to use an expensive card. Each participant has a field with three positions where creatures can be placed, and they attack the enemy automatically - in order for the damage to be dealt, the arrow moving towards the opponent must reach the goal. It can be either an enemy minion or the hero himself, and as soon as he takes 30 points of damage, the participant loses.
In an interesting way (reminiscent of Magic: The Gathering), spells are arranged here - when you use one of them, the match seems to be paused, and the opponent gets the opportunity to respond to your action. Then again it is your turn, and this continues until everyone runs out of mana (it is not restored at these moments) or the timer expires. Only after that all spells begin to work, and the process starts from the very last one. That is, if the enemy decided to inflict two damage to your creature, which has only two units of health, and you used the card "+ 1 / + 1" in response, then first the minion will get stronger and only then will it take the blow.
Another feature of Teppen is the so-called Hero Arts, powerful abilities unique to each character. They do not accumulate on their own, but become available as you play cards - how many points you earn depends on the cost of creatures and spells. If the art costs 18 points, it is enough to use three cards of six units of mana, and then you can activate a special skill at any time. But this does not happen as often as one might think.
To unlock characters and their associated arts, you need to go through their storylines - short stories of three episodes each. The plot here is as stupid as possible and even comical in its meaninglessness. In one of the episodes, Chun Li comes to the village, meets an angry Ryu there and begins to fight with him, although he is not happy to injure his old comrade. After that, Ryu calms down and runs away, and Chun Li goes after him and stumbles upon Dante, with whom for some reason he also has to fight. In general, classic fighting games stories about how someone hit someone with a shoulder and both freaked out, only here instead of fights there were games of cards.
Story mode is needed not only to obtain heroes, but also to explore their capabilities - all available characters are divided into four categories. The attackers (red) include Ratalos and Ryu - they can make direct attacks or increase the strength of creatures. Defenders (green) - Megamen and Chun Li, which give allies shields and improve their health. Mages Morrigan and Dante (purple) are able to slow down their opponents and cancel attacks, and many cards of the necromancers Wesker and Nergigante (black) are based on the "Revenge" mechanic, which allows you to return dead minions to the deck and play them later at a lower cost.
It is assumed that you will be making a one-color deck, as otherwise your options will be greatly reduced. With two colors, your total mana will decrease from 10 to 5, making expensive cards unusable. In the case of three colors of mana, there will generally be 3 units, and four cannot be taken with you at all. Obviously, those who want to make their deck colorful will have to rely on aggressive tactics: one of the most popular decks nowadays is Ratalos with red and green cards. Probably, such a limit is due to the balance, but the restrictions for two-color decks seem too harsh so far.
Building decks is fun, just like any good card game. You need to take into account the features of the cards, think over tactics and try to find the perfect synergy. There are cards that, when played, give allies bonus health, there are cards that cause damage to enemies standing in front of them. Moreover, this can be either a fixed number or depending on some factors - for example, on the number of spells played during the entire match. There are cards that severely injure creatures with certain statuses, which appeared to them thanks to your own actions before. Plus, the heroes have more than one skill, for participating in matches and gaining levels, you will unlock two more pieces for each. Dante will be able to become invulnerable for 10 seconds, Ratalos will give a shield and health to a minion, and so on - you can experiment for a long time.
In text format, the mechanics I've explained are difficult to understand, but in reality Teppen is very easy to understand. Each card with a spell has only a cost and a description of the effect, for any creature the number of "lives" and an attack rate are added to this. Very quickly you begin to understand who are "tanks" here with good health and weak attack, and who is fragile and designed to deal a lot of damage. Then you study the battlecries of the cards, decide on the order in which to play them. It's a pity that nothing can be changed in the starting hand - fight with what you started with.
I am also pleased with the work of the artists and designers, who made beautiful animations of the heroes during the battle and drew many great images for all maps. They tried not to forget about the most different characters, opponents and events from all the participating series: on the maps you can see Metal from Mega Man, Ada Wong from Resident Evil, even Lucia from Devil May Cry 2 is. The game is just nice to look at - perhaps it is not as "licked" as the Blizzard hit, but it would be stupid to call it parasitizing on popular brands.