Naya Delirium fills its graveyard fast with Fear of Missing Out and Patchwork Beastie, but most of its threats — Patchwork Beastie, Keen-Eyed Curator, Wildfire Wickerfolk, Fear of Missing Out — are mana value 2 or less, so Vicious Rivalry at X=2 costs 2 life and destroys all artifacts and creatures with mana value 2 or less, clearing their threats while our higher mana value creatures survive. Dragon Sniper's deathtouch trades up with anything they commit and blocks well against their aggressive curve. Ardyn and Kiora are too slow to keep up with this deck's low curve, and Commune with Beavers doesn't affect the board, so all three are cut. Be wary of Break Out finding a cheap creature off the top six and Practiced Offense being cast on their main phase to put a +1/+1 counter on each of their creatures and grant target creature double strike or lifelink before combat.