For example, if your commander has the ability to gain a lot of life, you might build a Commander deck with cards that benefit from maintaining as high a life total as possible, and focus on out-enduring your foes - or you might use your life total as a resource, burning through it to fuel powerful abilities and relying on your commander to keep yourself from succumbing
In FF3, the four protagonists, the Warriors of Light, have no characterization at all , so there was a shortage of characters that could be made into cards
cascade captures that chaotic nature by ripping through your deck to cast spells with unexpected results (in theory)
That said, since you have to discard the card at your next upkeep, it means that if you play it turn 2 you will need a madness card for 2 or less mana to be able to play it
It's very good mana acceleration especially in the early turns
Your primary win condition is winning through combat