Papa Khan, Raider Chief

Whenever you lose 1 or more life, if it is not your
turn, you may search your library for a raider
creature card with mana value equal to or less
than the amount of life you lost, reveal it, put it
into your hand, then shuffle your library.
Other raiders you control get +X/+1 and
vigilance, where X is equal to the number of
raiders you control.