Krav, the Unredeemed Krav, the Unredeemed gives you tons of control over what you sacrifice
It almost feels like this card is a fossil with all the muted dirty hues of brown and orange and the thick lines on Sandy Shocks itself complement it and make it pop out
By returning high-impact cards back to your hand that do something when they're played, this deck allows you to get even more value out of your cards, while also keeping your opponent guessing
For one green mana, you can give a creature +2/+2 for the turn, but it can only be activated one time per turn
There's a ton of stuff in Doom of Dimensions for other Decks, too
Secret cards seem to be an invention of the English version of the TCG, as all cards released as "secret" have been included in the normal set numbering in Japanese