While none of the Proposal cards themselves were leaked to the public, a recent Heritage Auctions post for a wedding invitation made the art publicly available for the first time
It was powerful enough that using the mulligan rule to find it was worthwhile, even if you started every game on five cards
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It has an ability that acts as a pseudo-Pernicious Deed, which truly fits its Nordic identity
3 Dark Confidant Emet-Selch, Unsundered Golbez, Crystal Collector Kefka, Court Mage Kefka, Ruler of Ruin Kuja, Genome Sorcerer Trance Kuja, Fate Defied Xande, Dark Mage
The effect doesn't trigger only once either, allowing for each artifact or enchantment you cast to build up more value
