They're usually best used at end of turn on the turn before you, that way you can respond to anything that happens, and if you happen to have mana left over before your turn, draw some cards
To be clear, Im one of the folks who doesnt enjoy the incredibly unique experience of playing with silver-bordered cards
Magics recent expansion into different intellectual properties has exploded the momentum of the worlds biggest trading card game
But the real treasure is its ETB ability that lets you swipe an instant or sorcery from an opponents graveyard, exile it, and cast it that turn using any mana, making it beneficial for attrition or grindy matches
Enchantment - Saga Proft's Eidetic Memory When Proft's Eidetic Memory enters, draw a card
Worn Powerstone Description : Worn Powerstone is a mana rock that enters the battlefield tapped and taps for two colourless mana