I dunno, is it just the random element of the game or is something wrong here?

i play Willy 1st card of the game, with 4 pills and he has the bonus
thats a total power of 11 (5base +4 courage +2 bonus)
giving a total attack of 55

my opponent plays Diyo with 5 pills
that a total power of 4
giving a total attack of 24

how did i lose this???

One time I lost a game to X-0DUS, Courage is OP.

Actually i dont think its op, because you can react to it (with dr, soa). in fact i think confidence or revenge is op
i had to fight Jayzel and Jiro, and i got beaten