They are both great in that they blur the line between spells and land and let you have some buffer in your build ratios and draws
Revenge of Ravens I love Revenge of Ravens to turning attacking 1/1s into straight negatives
Maybe it's because of the sheer amount of choices that various Partners, Companions, Backgrounds, and the like entail
Fire is probably the element that is affected by far the most here
This card is so desirable and scarce that even the non-legal, gold-bordered World Championship Decks 1999 version is worth $145
This 2/2 Bear Druid pairs beautifully with any number of keywords that delve into such territory, such as flashback, warp, adventures, as well as the main reason Doc Aurlock was printed: plotting