Selzyne Xyloform

When Selzyne Xyloform deals damage to a
creature, put -1/-1 counters on that creature,
where X is Selzyne Xyloform's power.
Ameliorate {1}{u}{g}(Sacrifice this creature. Search
your library for a creature with converted mana cost
equal to 1 plus this creature's CMC, put it onto the battlefield, then shuffle your libary.)
"Our staff is ready to administer the required anesthetics at any time." - Betha Zelt