The most likely reasons are if it's sacrificed, if it's legendary and another legendary permanent with the same name is controlled by the same player, if it's a planeswalker and another planeswalker with the same subtype is controlled by the same player, if it's a creature with toughness 0 or less, or if it's an Aura that's either unattached or attached to something illegal
There's also the alternate commander Rashmi and Ragavan , which can steal spells from your opponents' decks, and cast them for free if you've got enough artifacts
It's especially useful in creature-heavy decks that are vulnerable to wraths, and its the kind of card that opponents always have to plan around
They are as follows: - Amethyst (purple) - Ruby (red) - Sapphire (blue) - Emerald (green) - Amber (yellow) - Steel (gray) What's the difference between Disney Lorcana, Pokemon, and Magic: The Gathering
PLEASE NOTE Rarities of Pokemon cards do fluctuate from time to time, so we will regularly update this article