Hannover Mallet

Equipped Creature gets +2/+0 and Trample
Creature Gains {t}{3} flip a coin. On Heads, the Hannover Mallet destroys target creature. On Tails, the Hannover Mallet destroys creature it is equipped too.
{3} Equip Cost
The Hannover Mallet is a marvel of Gnome-ish technology. So, in other words, it will either be the swiss army knife of Warhammers, or blow up in your face.