Just wanted to let the developers know that there seems to be a bug with the Malakir Cullblade. It reads “When one of your opponent’s creatures is destroyed, this creature gains +1/+1” and it does, but only once. It will go from 3/3 to 4/4 but when any other creatures die it will show an animation as though it is gaining stats but stays as a 4/4.
Confirming that I see the same behavior.
Also observed, though I have gotten more than the first buff at least a couple times, but it is VERY rare.