Sylva, Arcane Dryad

: (Sylva, Arcane Dryad is a Legendary Land Planeswalker, isn't a spell, and counts as your land play for the turn.)
+2: Add one mana of any type that a land you control could produce.
-8: You get an emblem with "All your creatures, artifacts and enchantments are lands that are all basic land types in addition to their other types."