That's an impressive amount of work you made in 7 days. There are achievements, online leader board and auto combat. It's easy, you just press auto combat and the game play itself.

But they are enemies. And they attack you. That doesn't fit game jam's theme. The game itself is good. You made a lot of work on it but it doesn't feel it belong for this jam. Maybe if you could make a player return to the safe place when your team got perished like main menu where we chooses champions it would do it. If your intention was to make an idle game, you can't let player die and force him to restart. There should be a progress.

Some sprites feel odd as they are blurred and not pixelated properly. The game's size is ridiculously huge. What's taking space so much? That discourages many people from testing it. Especially I didn't discover anything particular in this that would make sense of this size.

Even if this game doesn't fit the game jam's theme, it is worth developing it and expanding. This would make an addictive game for mobile platform. You should consider it! ;)