Play sites that let you play creatures from your collection early game. Enjoy a comfortable card advantage with a field full of blockers as you out-site the opponent with sites that drop 2-3 power minions every turn. You're Elementalist, just play a deck full of busted cards and let the sites carry the early game while you build threshold and mana pool. The main reason we want Elementalist here is that her single threshold of every color means we can proc the genesis on Forlorn Keep, Forsaken Crypt, Molten maar, Peculiar Port, and Troubled town without needing to have any other pips of threshold. This means 16/30 of your lands allow you to cast a reasonably strong early game creature without touching your hand. 16/30 are very reliable odds for the sites; meaning reliably you have early game creatures, and can focus on playing absolute bullshit to delete your opponent once you start to out-expand them. Savior is a weirdly bad matchup since letting them get too much warded board presence is hard to come back from even with stuff like a deathdealer, and you lose to the normal rng turn 2-3 plague of frogs from interrogator like everyone else does.