The best is Brainstorm since you draw three and then return two, so it's strong with putting back lands, expensive stuff, hiding from discard and reshuffling with fetch lands et all
While it is missing some payoffs (namely ones that have storm), the decklist is very good at what it's trying to do - create creatures by playing as many instant and sorceries as possible
Creatures as large as 4/4 do not tend to be free, but about half the time Myr Enforcer comes down free of charge
This is a great way to stack up more Equipment and combat tricks for a quick finish
For starters, the curse of the fire penguin is that you start turning into a fire penguin
Every time you trade a creature in combat or sacrifice one for value, Elenda becomes a bigger threat