If you have the deck upgrades for the 1 mana bot (summon, draw 1) and the 6 mana spell (shuffle 2 1 cost copies into your deck) you can go infinite (+upgrades) if you have heimer on the board and have a 1 cost copy of the spell. (even crazier with chemtech) Then I actually dont mind using Progress Day to skim the deck. Just cant pick any cost reducing powers. Using that strat i can confirm that my luck suuucks when it comes to upgrades.