Radioactive Dancing Blacksmith

Radioactive 1 (At the beginning of your upkeep, put
a -1/-1 counter on target creature you control. At the beginning of your next upkeep, remove that -1/-1
counter from that creature.)
{1}, {t}, Sacrifice an artifact: Create a colorless Equipment artifact token with "Equipped
creature gets +X/+X" and "Equip {x}" Put X
counters on that artifact, where X is the
converted mana cost of the sacrificed artifact.
Untap this creature. Tap this creature.
Untap this creature. Tap this creature