Gnome Wizard

Magecraft — Whenever you cast or copy an
instant sorcery spell you may sacrifice another
nonlegendary creature.
Until end of turn you may have up to X target
nonland permanents become a copy of the
sacrificed creature where X is equal to the
spells mana cost.
The copies have "Pay 2 life: Return this creature
back to normal. This ability can be activated
by your opponents."