

At the start of your main phase or whenever you play or fuse a Loot card, place a reversal counter on this. Then, if this has at least 8 reversal counters, banish it, search your deck for a Thief card, reveal it, add it to your hand, then shuffle.
QIf I Fuse multiple cards at once, such as with Sinciro, Heir to Usurpation's activated ability, do I still only place 1 reversal counter on this crest?
AYes, that's correct.
QDoes this crest's ability trigger if I play a Loot card at Quick timing after my opponent declares an attack?
AYes. Additionally, since it was played at Quick timing, you would resolve the Loot card's ability and this crest's ability before resolving the opponent's attack.
QCan crests in the EX area be selected by abilities that select cards?
AYes, they can.
QCan crests in the EX area be banished or transformed?
AYes, they can.