What you tend to lack, however, are game-enders
So we can pay one and two life, and exile a spell that isn't useful to us
Sure, there are players who don't own any cards (or don't care about the few cards they do happen to own), prefers to proxy up the decks they play, and couldn't care less about the flavor, editions or conditions of cards they use
Jhoira of the Ghitu Sharuum the Hegemon Sharuum the Hegemon is both an excellent graveyard recursion engine and part of its own, personal, combo
Emrakul, the Aeons Torn isn't easy to get into play through mana, but spells like Summoning Trap, Through the Breach, and Sneak Attack can and have been used to cheat Emrakul into play for far fewer mana
It's even good in multiples because more 4/4 fliers are produced the more Speakers you have