There's a couple issues with this
With life totals starting at 40, it takes a while before the damage you receive from Burden counters becomes even a minor concern
More likely, the board has been cleared of creatures, by another player's Wrath of God or one of my own
Then you can get a Propaganda for two rounds and then make a bunch of Treasures on the way out being equal to your larger size power your foes' have
It also crews with three, but the real bonus is you can pull it from the graveyard if you have enough pirates attacking
I plan on playing her too, but I do find her aggressively boring, and I hope we don't see a 10th Enchantress card any time soon unless it actually does something different and isn't just like "Satyr Enchanter but strictly better in all ways," ya know