You know a pasture soft game when you see one, and here it is.
Low quality, low budget, almost functional. The game works, the animation is there, but a little better from the other games in the past. The rng in this game make you mad, you can retry a battle but if your cards are not match to the boss, you need to make a newgame+ with one level less, and no upgrades. Most of the time you engage in battles and you arrive to the boss naked because the rng punish you instead of giving useful upgrades. The best strategy I've found is: picking very few cards.