impfinte imps

Flying
You are any number of cards named impfinte
imps in your deck.
If you control no other impfinte imps as you cast
this, this spell is free.
At the begining of your upkeep you may search
your library for a card named impfinte imps if
you do lose 1 life.
{t}: {x} lose X life, search your library for X
impfinte imps.
{t}: gain 1 life