The most famous and useful fetch lands are not legal in Standard
Because Ursula is a popular villain and this cards ability that lets you play Songs multiple times, shes valuable to collectors and players
I had hit him with a Lightning Bolt on my second turn, then untapped and Channel / Fireballed him out and it was in that next moment that I learned what Mana Drain was
All of that pales in comparison to the 269 folks playing Leyline of the GuildpactLeyline of the Guildpact in their Niv-Mizzet, GuildpactNiv-Mizzet, Guildpact decks, however, which entirely turns off their commander who specifically looks for two-color cards
It was pretty cool to see this decks graveyard mechanics come into play, though
As you activate a ninjutsu ability, you reveal the Ninja card in your hand and return the attacking creature