Fetch lands are the best tool for making sure that you have the correct colors of mana to cast your spells
This means that, if an opponent is trying to target your permanent with a spell or ability, flickering or blinking will cause it to fizzle and no longer resolve
Amber/Emerald Starter Deck List, Strategy & Upgrade Guide Into the Inklands The Amber/Emerald Starter deck contents have been revealed, and with starter deck tournaments coming up, players are going to want to have a fair understanding of how to pilot these new decks to victory
If you start casting a spell, then go to activate mana abilities to pay costs during the cast, and you accidentally make it so that you cant pay for the spell, the game rewinds, you untap everything except your mana abilities that interacted with libraries, and you get another try at it
For example, in an EDH deck based around enchantress abilities, it can be used to find powerful enchantments like Aura of Silence or Sphere of Safety