Skullclamp was an oversight on R&Ds part when it was released, accidentally becoming the best way to draw two cards overnight
Smugglers Share struck me as a more broadly powerful design, and Verhey says thats intentional (although it does depend somewhat on the decks you play against)
Watch me Pokemon cards at Sam's club Limit 5 at Sam's club now Was limit two
With time constantly adding to the difficulty of finding older cards (especially in good condition), it's likely that this card will continue to become rarer.
At the beginning of your upkeep, if there are four or more land cards in your graveyard and you both own and control Titania, Voice of Gaea and a land named Argoth, Sanctum of Nature, exile them, then meld them into Titania, Gaea Incarnate
However, there are also Trainer cards that can cause damage modification