Niels, Hyper Energizer

Eminence — When a creature you controll dies,
you create {e} equal to its mana cost and you gain
1 life.
Remove {e}{e}: Pick a tool. That tool enters the battlefield.
When Niels, Hyper energizer enters the battlefield, choose a tool. This tool then enters
the battlefield. (Tools reside in the command
zone, and can be returned to command zone
from graveyard and exile.)