Liliana of the Dark Realms isn't exactly a staple powerhouse in any format, but that hasn't stopped her TCGPlayer listing from showing a $259.27 market price at time of writing
Aggressive Milling is much more of a late-game card-drawing card
COMPATIBILITY: Please read carefully. It does fit OP-01 reprint (white bottom), OP-02 reprint (white bottom), OP-03 through current OP-16. Also will fit and EB-01 - EB-03. Does not fit OP-01 original print (blue bottom) or OP-02 original print (red bottom) or PRB boxes. Some boxes will have a bit extra room on some sides as there are several sizes between these boxes. Please check exact dimensions before ordering
This has led to lots of cards which only exist to provide an enormous amount of lifegain ramping up in value, such as Beacon of Immortality
Like most Magic: The Gathering cards, the value of Forest depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Theros)