As your life points tick down, you can flip facedown cards representing each life point to your hand - if the card drawn has a 'trigger' effect, this can be activated immediately to shake things up
I should be running more removal spells, but this is meant for more casual play
Then sacrificing dorks for cards became a thing and now Black usually either sacrifices dorks or pays life for card draw
Then, the real reason we're here is Fire Lord Sozins trigger for hitting an opponent, you get an army's worth of creatures for the cost of the biggest one
It can do great work in Commander, where you have time to really leverage this classs final level
it's an expensive removal spell, but it does stuff we want - either kills an Insect or puts itself in the 'yard as it comes in, building up our 'yard for when we cast our Commander