Scavenger, Horrorween

Whenever Scavenger enters the battlefield, it taps unless you control an untapped Horrorween
creature.
Whenever Scavenger untaps, search in your
library for 1 Horrorween creature, reveal it and
add it to your hand. Then shuffle your library.
{t}: Target opponent gains 1 life.
Opponent players can target Scavenger directly in combat phase, unless Scavenger is tapped.