You can use both of these to fetch the right creature for the job, or just to accrue some extra value
If Dryad Arbor (the only card that's both a creature and a land) is in your graveyard, you can't play it this way
Rules 08/15/10 If you choose to find only one basic land card, you put it onto the battlefield tapped
[224] By proving this, the researchers assert that Magic: The Gathering is so complex as to be Turing complete and capable of being "programmed" to perform any task, that in terms of playing an actual game of Magic , "the winning strategy is non-computable", making it an improbable challenge to devise computer opponents that can play Magic in a mathematically optimal manner
payoff" color crystallized around this leader
it was first changed to "unaffected by summoning sickness" in Mirage and then replaced with the keyword Haste in Urza's Destiny