Crystal Ball I like to think of Crystal Ball as a poor mans Sensei's Divining Top in the sense that you pay 1 mana to rearrange the top few cards of your library
The card boasts some great artwork and good use of colors
Many of them come from Fallout, with cards like Hancock, Ghoulish Mayor and Vault 12: The Necropolis buffing mutants, plus Jason Bright, Glowing Prophet and Vault 87: Forced Evolution providing card draw
If youre just after a case to take out to clubs and tournaments then they make a smaller option, the Bolt, for that very purpose
Somehow the coming Standard seems to be a 5/7/9 one with many powerful spells at seven mana, but our ramp after rotation is mostly in the 2/4/6 bracket: Leaf Gilder, Hedron Archive, Explosive Vegetation, Nissas Renewal
Think Mega Lucario glowing in a forest, Mega Camerupt in fiery volcanic digs, snow-capped surroundings for Mega Abomasnow and more