I ran into this game quite by accident, which turned out to be a bit more than anticipated. Suggestive adult material might lure new people in, but it was pleasantly surprised to see that the game mechanic was actually reasonably enjoyable. It's weird how I ended up paying attention to the game mechanics more than the pictures, even if the pictures did make the game more smooth presentation wise at least.

The game begins pretty easy. Tutorial makes you beef up Ballerina card to lvl 5, which should easily knock out most opponent cards (especially if it fuses with another common card) should knock any cards out and allow you to add more and more cards on the deck while enemy opponent is bottlenecked trying to place the first card that ends up dying by your stronger cards. Eventually the diff of cards will overwhelm the opponent and you'd win easy.

It goes like that for a while until you run into the opponents with cards higher leveled than you, or have rare cards that will outclass your cards. In order to beat them, you need at least 1 card (or fused) that will be able to knock out the first card long enough (or forever) to prevent enemies from overwhelming you with better cards. The more you play, the more you have to forfeit the game and redo until you have your strongest cards ready to bottleneck the enemy cards. You cannot fight fair and win generally speaking, and almost to the point of impossibility as the level progresses.

Once you start having rare cards, pianist is the strongest card with the ring card. you level her up sufficiently enough for her to be your white queen, and the rest merely speed up the game as the fused pianist ensures the opponent can only put 1 card at most, which will be one-shot by your card. As the game progresses, you realize your hero' ability can make a small edge by increasing attack bonus (1-2 realistically speaking, maybe 3 at late game or blue-tier hero, whichever cometh first.  The strongest champions for epic are Lady Vamp (main all-damage carry), proctologist (a bit more frail but can stack attack as the game matures via "masochist" ability where her attack stacks up... Lady Vamp does it too, but she can stack faster. Police Officer is a great support, able to seriously increase your deck's attack dmg and butt plug. Diamond ring and Thinker cards fusing to these cards can allow your fused card to hit 20+ dmg in the intro of the game, which is a must to knock out enemy's first card before the opponent's superior cards will overwhelm you. To get to first strike 20+ dmg can be hard. You need epic cards to reach at least lvl 6 or more (it's harder because after lvl6, it's no longer linear as you need another card leveled up to 6 and fuse them to reach lvl 7 and beyond) which cost a lot of viagra points that are not so easy to mine as the cash. With a lot of time and effort, you could get there and you should be able to clear yourself all the way to adventure 7. Finish all difficulties in earlier stages of adventure can help you get  rare cards that have strong ability powers. They cannot be used as first strike out all-damage card, but they can make the game much easier by providing immense firepower support (Polly) and Lisa (who can stack dmg reasonably fast enough to become serious adc AND able to reduce enemy attack dmgs and allow you to build the number of cards faster).

However, it's when you get to adventure 8 where things get really bad... to the point where I decided to quit. Enemy cards start on the getgo with high 20s and low-mid 30s health points, which is extremely difficult to knock out on first punch unless you paid real money to get some broken cards your steroid beefcake your epic cards. I have played 2 solid weeks straight (collecting all daily bonuses), recycling all the piles of common and rare cards) and the best I can get is Lady Vamp at lvl 10 and Prctologist lvl 6 fusing with diamond ring or thinker that will get me to dmg low-mid 20s at most.

Very promising game (might make a game with similar idea of my own actually), but difficulty curve is not for everyone and can discourage many. I do realize it's a freemium game, but when the game curve is this high... it kinda ruins it.

It'd be also cool to have an option to see what your card fused up would look like stat wise (not the general one, the one with card lvls factored in).