While numerous lands tap for multiple colors of mana, these are the only nonbasic lands that offer two colors of mana with virtually no drawback or restriction
If you can endure the pain and reach the Cradle of the Death God, then The Atropal is yours: a 4/4 legendary God Horror with deathtouch
Cultivate, Explore, and Search for Tomorrow get you ramping early so you never miss a land drop
(It is not, however, Outpost Siege, a mistake an earlier draft made caught by an eagle-eyed commenter!) This deck, on the whole, suffers from Way-Too-Many-Tapland-Itis, and its ramp package barely mitigates that
Llanowar Elves and friends), Dionus essentially doubles the value of all your mana dorks by letting you tap them twice per turn
These cards are fairly common in Standard decks, although less so in MTG 's most ultra-competitive formats like Modern and Legacy