Xantcha, Sleeper Agent and Yuriko, the Tigers Shadows abilities don't involve combat damage, so they don't have anything to do with commander damage
Then I looked over at my son, and saw the joy and excitement on his face, and knew in that moment that it was, indeed, worth every minute and penny Id spent that day
His ability to ready up again twice per turn when chosen for an action or an item's ability seems fairly good to me as well, with a high ceiling for shenanigans, from my initial impressions at least
Considering that black is the colour of sacrificing your own creatures for big effects, this can easily turn into a major card draw engine
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At first glance, Cut-Ribbons seemed like less than the sum of its parts, but Ive come around on this card