In fact, if you're at infinite life and get with an opposing Infinity Elemental, you'd still be at infinite life
Being able to cast two spells a turn should be achievable in most decks, and regardless of whether youre ramping into an expensive or early commander, youll want to be playing some amount of ramp to make this happen
These decks can run a lot of efficient one and two-mana removal to help keep the battlefield clear of your opponent's creatures so that yours can get in for damage
True, she's a little expensive, at six mana, but for that you get an immediate boardwipe that benefits you far more than your opponents
Biogenic Ooze - Not only does this make a token when if flickers, but it also makes them all bigger over time, and can even make more tokens even if you don't have flicker options
Magic has a 30+ year history, and a lot has changed over the decades