Flickering the Extortionist with an activated ability of a card like Emiel, the Blessed will likely be free thanks to the Extortionists ETB effect
While there is technically no maximum to how large your deck can be (as long as you can shuffle it), youll likely want to stay right at the standard minimum of 60 cards
The deck combines a lifelink army with a recursive token engine, staying healthy through combat while generating a constant trickle of damage from dying Devils
I will, however, point out Smelted Chargebug and Riddle Gate Gargoyle as being decently playable cards
Gold Border Gold-bordered cards are reprints that were included in a commemorative set, like the World Championships Decks that were released from 1997 to 2004
So Map tokens and explore are intrinsically linked, with Map tokens simply being a way for you to essentially store Explore triggers