The way spells worked was that they happened in the order you played them
Much like Ghalta, Stampede Tyrant, Gishath allows you to put any number of Dinosaur creature cards onto the battlefield, but, improving on the formers ability, you can dig through the top X cards of your library to get them (based on the amount of combat damage it dealt)
When considering speculating on one of two cards with all other things being equal, you should pretty much always go with the one in shorter supply
Today the Scrap Trawlers are looking at the Mishra's Burnished Banner Commander precon deck with ways to upgrade it
It saves your entire board, blanks lethal attacks, and often swings games that look completely lost
This is nice too, because one of the things it looks like treasure decks will want is mana sinks, and Forsworn Paladin is nice there as well