Riju, Gerudo Chief

Riju, Gerudo Chief enters the battlefield with
four quest counters.
At the beginning of combat, you may tap Riju
and one other creature, if you do, remove a quest counter from Riju.
When you remove the last quest counter from
Riju, search your library and/or graveyard for a
card named "DivineBeast: Vah Naboris", and put
it onto the battlefield.