While it does scale down in the late game, a three-mana draw-three in the early to mid-game is great, and giving your opponents cards with it might not even be bad, especially if you run effects that profit off of exactly this
Theres even some utility for Commander players here, thanks to Welcoming Vampire, Creepy Puppeteer, and Glorious Sunrise
Will of the Mardu $6.47 Will of the Mardu is a good card when youre winning, when youre losing, and especially when you have your commander out
The second is that giving up that information can be very risky and often unnecessary, since the answer lies within the card itself
You may well have to pick some things you don't want to and likely over things you did want and then shoehorn these random life gain things into your deck that you otherwise don't need or have better options you would rather have in the slot
A 1-drop red mana dork is unprecedented, even if it only helps you to cast equipment cards