If another creature you control is both of the listed colors, it will get a total of +2/+2
I will again mention having just one pile of cards to focus on over an entire table that is your entire collection will likely speed up the process
Up for sale is an amazing complete 54 card set of the Masterpiece Series: Kaladesh Inventions
Card-by-card analysis I separated cards in the maindeck into four sections: dredgers, enablers, payoff and lands
You could combine this with say, Chord of Calling to Convoke Kona, pull a gigantic creature from your deck, and then play it at the end of the turn
A Trashcan Ending While TellahTellah wants big, noncreature spells, I felt like there were a bit too many in ZaffaiZaffai's list