We use qué: In front of a noun, verb, or verb phrase when we don't give any possibilities to select from. Often, we have been asking an open up-ended problem which might be answered any way the speaker chooses. Cuando se trata de juegos de cartas, siempre hay una carta https://tarotbizum.info/cual-es-la-carta-mas-poderosa-en-las-cartas-este-es-el-misterio/