Cieran Locale, Ruins of Somnus

Tap target creature you control: Put a fog
counter on this card.
Tap three creatures you control: Search your
library for a card of your choice and put it into
your hand. Put a fog counter on this card.
Remove X fog counters from this card, pay {x}, {t}: Tap all creatures and artifact permanents attacking, blocking and/or using abilities this
turn, with the number of affected permanents
being less than X. For the rest of the game, they
do not untap during untap steps.