rate my mtg commander deck Decks Rate my commander deck :

If one of the cards ends up touching the object used to represent a creature or planeswalker token an opponent controls, Knife and Death will deal damage to it

Echo Storm

While I don't see this being the most expensive Crystal price-wise (that honor goes to The Earth CrystalThe Earth Crystal), I can certainly see this being one of the most widely adopted across multiple archetypes

This tells you how much damage it takes to defeat a battle

The peak spike price of more than $500 wasn't the true market value of the card because nobody was willing to hand over $500 of their hard-earned money for a copy of the zero-mana artifact

Haktos is a battle-happy champion whos almost, but not quite, invincible, with a single weakness that just might destroy him