Obviously it cannot target and lock down the Extra Monster Zone, but by locking out the Main Monster Zones, itll make it hard to recover when you cant use anything more than 3 Monster Zones
Sun & Moon also introduced an updated card design that included a number of changes
This isn't a rough approximation what you see in the preview is extremely close to what prints
Celtic Guard/Obnoxious Celtic Guard Celtic Guard was on Yugi's deck from his earliest days in the Duelist Kingdom
Exalted Flamer of Tzeentch is like a crazy mix between Charmbreaker Devils and Guttersnipe and should be popular for decks playing either one
Examples: Guardian of Faith, Resolute Reinforcements, Abzan Falconer Ratchet, Field Medic transforms when you gain life, bringing back an artefact, and transforms back when you sacrifice a nontoken artefact