If youre sick of your permanents (and Commanders) dying on the battlefield, then youll want to grab some of these and put them in your next build
A lot of commanders available can start making an impact on their own - so even if you don't have creatures in your opening hand you can still make use of what is there and draw into your creatures later
As I often explain in my Budget Commander articles, every time I build a rough draft of a deck, I make sure I have certain ratios of mana, interaction, card advantage, etc
Scry, especially scry 2, also leans a bit more in blue's direction
Also, whenever one or more creatures you control with an aura attached to them attack, you may draw a card