Baral, Chief of Compliance, is, without a doubt, the purest version of the Mono-Blue experience: your opponents try to do something, anything, and you explain, politely but firmly, that they will not be doing that
Monsters with 2000 or more are not uncommon, and monsters with self-SS effects and EX monsters can be used as a base
X and Memory Berry focuses on either decking the opponent or securing a win on time after getting a Prize lead, by dragging up the opponent's non-attacking Bench sitters with Restructure/Inviting Trap and then keeping them locked in place by Sand Tomb, while Flygon lv
Experimental Lab // Staff Room is a solid option for counters decks, but at this point, we have so many solid options that its entirely based on flavor and what you have in your collection really
Theres no visible wear on the surface of the cards, and all coloration, text, etc
The best IR cards are Articuno, Lillies Ribombee, Ionos Wattrel, and Hops Wooloo