Using their sacrifice ability can scale them rather quickly and then you can kill them off too for widespread damage
Besides, if your board state is poor and you're taking damage, gaining 7 life will not buy your much time, and your opponent's heavy-hitting creatures are still there
Cinderella, Melody Weaver is an amber card costing five ink to play, with a measly one strength and a decent five will
Do you wish that that the card had a mega powerful ability that would be broken in Commander to make up for that drop in size
The player will always target someone vulnerable to attack who hasn't assembled a defense yet, or who can block all five damage with something like a Fog Bank, and then get the cascade triggers to fall their way
Whether you are a casual Commander player or a technical grinder, understanding how to maximize these triggers is the key to turning a simple board state into an overwhelming victory