crimson vow mtg cards Innistrad: Collector Booster Box If you do MTG Innistrad Crimson Vow R

As part of their announcements for this year's MagicCon: Las Vegas, Wizards of the Coast revealed that each attendee at MagicCon will receive a promo card of Yoshimaru, Ever Faithful, starring Torgal, Clive's Companion

Individually these effects are marginal: but combined they form a card that was so good, many non-red blue base decks started playing red just to get it (plus Flametongue Kavu, to be perfectly fair)

The loss of life might come from the effect of a mana ability causing you to be dealt damage (such as the last ability of Adarkar Wastes) or from the cost of a mana ability requiring you to pay life (such as the ability of Mana Confluence)

They just need art comparable to the first "Ponies: The Galloping" Set