You normally get about one to two white cards per booster pack , depending on the sets color distribution
Cheating in Bloodthirster with Kaalia can get you a second combat phase, allowing Bloodthirster and any creature with vigilance (like many Angels) to attack again , once per opponent
While two Planeswalkers for the cost of one is nice, this casualty ability means that in Commander, the copy may often be able to immediately access its ultimate -7 ability: allowing its controller to draw seven cards at the cost of seven life
These cards are not remotely as powerful as the best ways in all Magic to cheat creatures onto the battlefield, but its not difficult to conceive of an environment where these are among the more powerful cards
Simply open two Jumpstart Boosters, shuffle them together, and start playingno time required to build your deck
There are many viable ways to make this product and enjoy the franchise, so there were many viable decisions to make