MTG Minthara Commander

Hello guys. I know I'm late to the party, but the group which I am playing BG3 with is rekindling their love for Magic the Gathering. I'm an absolute noob here and only played with my friend's deck (Slither, if that help). I recently found out that there are BG3 cards and thought about getting a deck with Minthara as a commander, but I'm lost when it comes to the creation of the deck itself (I don't want to ask my friends because I want to surprise them when we play for the next time). Does anyone have a recommendation for a Minthara deck? When googling I found several, but they all have 100 cards in a deck, I thought there were supposed to be 60? Mind me, this is suuuuper casual, I don't plan to play competitively. Thanks in advance.