Mizzixes, Goblin Avenger

Stealth
{t}, Mizzixes loses stealth:destroy target creature
and create X artifact treasure token, where X is
it's converted mana cost, activate this ability only
if Mizzixes has stealth. If a gnome or an Artificer, Mizzixes get stealth back.
Betrayed by his friend steam, and without family or friends, Mizzixes only seeks revenge for those who
killed all his beloved ones