These, plus any other low-cost elven creatures you're able to play, suddenly become far more powerful thanks to Lathril
Since there aren't as many cards in existence when compared to most of the other entries on this list, they are typically held at a higher value
Leovold, Emissary of Trest A common story among the upper ranks, Leovold, Emissary of Trest was an amazing card-draw (for you) and draw-hate (for your foes) Sultai commander until, victim of its own success, it was banned from EDH
Flash in some faeries on opponent's turns, and relevant tokens on your turn for maximum exile milling and free spells
Having a way to deal with a problematic permanent when you need to and a creature to threaten life totals with when you dont is phenomenal
Cost is tricky because card prices are constantly shifting, and some cards of identical rarity might be wildly different