Blue has it unconditionally, black lets you trade life for it, green often bases it on your creatures, and red has you discard cards in exchange for a draw, but white has almost nothing
The starter decks will give you shiny foil versions of their respective headline cards: The Queen, Commanding Presence and Gaston, Intellectual Powerhouse or Merlin, Shapeshifter and Tiana, Celebrating Princess
To get mana out of a land card, you need to tap it, turning it on its side to indicate its been used that turn
In fact, many best commander lists are really Jodah decks, since powerful legends shine most when played together under its ability
This can only be activated at sorcery-speed, still this is a powerful ability