There are lots of situations where you draw it and don't want to use it at first, perhaps you have lots of lands or only very low costing cards, the Chrome Mox will sit in your hand but instead of being dead it will be a get out of jail free card
Bruna is one to consider, and I also really like Heavenly Blademaster as a surprise attacker
Of course, you could use house rules to include them, but you might end up falling out with your playgroup when you get your friends thousand-dollar card
Liliana offers recursion, hand control, and planeswalker value in a single card, flipping easily in sacrifice-based decks
Once you had Humility/Prayer going, how many of your cards even matter
You may put that card on the bottom.) : Add