Decks that like to set up a field early or use effects that prevent themselves from battling will find it more advantageous to go first, while decks that need extra hand advantage to start their plays or respond to what the opponent does will prefer to go second
So we look for the literal word move here, or effects that reference their own counters, such as cards that say when this dies, put its counters somewhere else. Ill be weighting towards Commander, because when are you really moving counters around in other Constructed formats
Mana Geyser, Treasure makers, and so on can power out monstrous dragons, Eldrazi, an Ugin or two one of the best ways to use excessive ramp is to draw a ton of cards, either to convert that ramp into card advantage, or to ensure you have a bunch of ways to use your temporary mana
More than 20 Trainer cards
Theres even a players guide to the new expansion that can help you fine-tune your strategies