Circuitous Route can also search for Gate cards, Ranger's Path can search for nonbasic Forests, Migration Path can be cycled to draw a card instead, and Vastwood Surge has a kicker cost of four that puts two +1/+1 counters on each creature you control
Look at that cheeky dodge in Avoid Fate
Then draw cards equal to the sacrificed creature's power
Some cards also require multiple colors of mana to cast
While it's true that this opens you up to potential blowouts when they wipe the yard with cards like Bojuka Bog or Tormod's Crypt, remember that we're going to be drawing extra cards, too, and we'll be putting cards into the graveyard on most turns, meaning we can recover from a Bog (or Draugr Necromancer) fairly quickly
Have you ever wanted to have an army of pingers like Prodigal Sorcerer