The most basic strategy is simply to choose your colors ahead of time, before you even open your packs

Advanced Search Sets Random Syntax Alchemist's Gambit All in Good Time Alrund's Epiphany Avatar Kuruk Beacon of Tomorrows Capture of Jingzhou Chance for Glory Emrakul, the Aeons Torn Emrakul, the Promised End Eon Frolicker Expropriate Final Fortune Frenetic Efreet Avatar Gerrard's Hourglass Pendant Gonti's Aether Heart Holy Armor Howling Mine Ichormoon Gauntlet Kang the Conqueror Karn's Temporal Sundering Last Chance Lighthouse Chronologist Lost Isle Calling Magistrate's Scepter Magosi, the Waterveil Medomai the Ageless Mu Yanling Nexus of Fate Notorious Throng Otaria Part the Waterveil Perch Protection Phone a Friend Plea for Power Power Leak Ral Zarek Regenerations Restored Rise of the Eldrazi Sage of Hours Savor the Moment Search the City Second Chance Seedtime Stitch in Time Stranglehold Sylvan Library Teferi, Master of Time Teferi, Timebender Temporal Extortion Temporal Manipulation Temporal Mastery Temporal Trespass Time Bends to My Will Time Sidewalk (playtest) Time Sieve Time Vault Time Walk Time Warp Timesifter Timestream Navigator Trouble in Pairs Twice Upon a Time Twice Upon a Time Ugin's Nexus Ultimecia, Omnipotent Walk the Aeons Wanderwine Prophets Warrior's Oath Wormfang Manta

And oh, Giovanni helps OHKO the frustrating Exeggutor EX as well
I have already written about this in a previous article
Of course, that is shut down by the new Steel Apron, but that's a Tool used in a limited number of situations
But, if you play your cards correctly (pun intended), you could end up with a valuable collection worth more than Logan Pauls 1998 holographic Pikachu Illustrator