After all, Hazel can tap Food tokens for mana just as easily as she can tap Squirrel tokens
It doesn't let you ignore format legality
Pay seven mana for Rot Hulk (or you know, cheat him out, that's always preferable) and you'll have 5/5 Zombie with menace whose enter the battlefield effect rewards you with a reanimated zombie for each opponent you have
There we have it, ten (but actually twenty one) cards from Adventures in the Forgotten Realms you should definitely pick up for Commander
Basically stacking up Mana Leaks just showcases how the card is a limp counterspell and never more than while stacking up Disfigure increases the utility of the effect a lot
Granted, there are practically zero penalties for losing, so theres no reason not to just concede and hope for better luck next time, but that random element seems to end most games before they can even start