It guarantees you wont be mana screwed, and you can thin out your deck so you are less likely to draw basic lands late game
A few of the Cyclers are mass pump spells
In fact, we could have done this piece with only the multicolored cards and still had lots to talk about
That's pretty saucy from where I am standing, as free dork abuse in the Command Zone can be broken as we know, but here you need to spend six mana, tap it and wait a turn, and then you just don't know what you'll get, if anything, hence it making my second list back here in the Honorable Mentions, but worth it all up and down, and make that choo choo sound
Eldrazi Displacer: good flicker effect on a 3-drop, must play
Sounds like a great control card to me