Sure, getting to draw more than one card may cost you four life each, however, in Commander that can be well worth paying
Ideally there will be some way in the deck to give it one more power: map tokens, Profts, Bristly Bill, etc
This release also features the meld mechanic on a single "meld pair": a duo of cards that, under the right circumstances, combines into one extremely powerful creature
I loved Warhammer 40K but I couldnt afford the miniatures back then on a soldiers salary
The power comes from the card selection
For each of those cards, pay 4 life or put the card on top of your library. In essence, rather than drawing one card, you get to draw three then pick the one you want the most out of the bunch and keep it for free, or choose to draw more cards by paying some life