Zovyrn, Duskwalker Eternal

Deathtouch, lifelink.
{2}{u}{b}: Until end of turn, target creature
without assassinate gains "Assassinate - Put X
+1/+1 counters on this creature, where X is the
power of that creature."
"I'm still unsure whether it kills for sustenance, glory
or fun. But, the fact that this remains a mystery... intrigues me."
-Saereth Vyrax, to Rokalos Vidakro