Here's how it works.
in Random highest attack = more chance to win.
In No Random Highest attack = win.
In No Random, if you score the same attack points then:
Lowest star count wins.
But if you have the same star count AND attack points:
Attacking player wins.
AP? attack power? your probly in random. switch your game settings to no random
The card with the lower stars wins. if they stars are the same, the attacking card wins
Star count? lower star > higher star, and playing the round first > playing the round second
Tie in AP goes to the card with the lower amount of stars. if stars are equal, the win goes to the attacking card.
the room you play in must be no random... or else a tie will be a 50-50 coin flip
I'm guessing AP is attack points.
If your opponent and you tie in Attack, then whoever has the lower star count wins. If both star counts are equal, then whoever played their card first wins.
You're playing in random, select non random at the top of the game room