So during the game if there's a Cathar Commando in the graveyard you can cast it from the graveyard to sacrifice it to destroy an artifact or enchantment on the battlefield & then with the exile trigger ability on the stack, you can cast it as it has flash
Even with all of that stated, the best aspect of this card is the fire
On the first few turns, you'll want to establish a board presence and start to chip in for damage
If the numerator exceeds the denominator, the card is a secret rare of some kind SR, SAR, UR, or MUR
As more sets are released over the next few years, that number is just going to continue to rise, so keep an eye on that number as grows more and more!
An advanced player studies the meta to understand which decks they are most likely to face