Sacrificing two lands for a 3/3 creature is a horrible deal in most situations, considering how important lands are
Over time, Wizards realized that Threshold was behaving more like a condition-based upgrade rather than a standalone keyword with its own rules baggage
Playing in top-deck mode for most of a Commander game seems difficult
Tireless Tracker [c]Tireless Tracker[/c] doesnt directly draw you cards, but it creates Clue tokens, which can later be sacrificed for cards, which is almost as good
That being said, if you happen to have a lot of expensive cards in your library you're likely to win out from this effect
Casual Encounters- Top 10 Cards from Eternal Masters Eternal Masters Well, it is that time of year again when we have had a new set of spoilers and all sorts of fun stuff get revealed for Eternal Masters