*It can compete with the current meta, i.e. a deck that can remove monsters without destroying them and that has 1 card combos something like Queen Tiaramisu, Anjelly and Puddingcess
That's why a deck needs 1 card combos: to survive 1 or 2 disruptions without running out of resources and to be able to run either tons of traps or tons of trap/spell removal.
The boss monster must be decent enough to get rid of Cocytus or Sunsaga.