As chance would have it, Banzai works well as both a challenger and a quester
Either way, you win
This five-cost sorcery destorys all dorks and artifacts, but keeps the rest around
Some cards that I think could build out this shell: Ugin, Eye of the Storm Summon: Bahamut Solemn Simulacrum Adventurer's Inn The Irencrag Sire of Seven Deaths Mazemind Tome Fountainport Jill, Shiva's Dominant & Joshua, Phoenix's Dominant Jill and Joshua are two cards that feel powerful enough in Standard, that feel like they slot into a number of already existing archetypes
There are heaps more, even more so when you think about all the old cards in the Through the Ages sheet
In a two-player game, Secret Rendezvous is worse than playing no card at all, but in a four-player game, its a great way to start an alliance to join up against a common enemy