meadow card sleeves Downstream: Cards And Pack there is an envelope with 6 cards as a mini Meadow: Cards & Sleeves Pack

Mox Opal was banned in Modern relatively recently - in January 2020 - after Urza, Lord High Artificer decks became an abominable threat, aided by Oko, perhaps the most infamously broken Magic: The Gathering planeswalker ever printed

Those effects are particularly good for this deck's stun and shield counters, keeping opposing creatures locked down and your own creatures safe, as well as for blitzing through the strong effects of your saga creatures

Thank you for reading and keep bargain hunting

Manectric from Platinum (#11) is an MVP of this line for sure, and Manectric ex from EX Deoxys (#101) could provide some cool Trainer-lock scenarios

Haste is an incredibly underrated keyword, and putting it on a 7/5 creature and possibly two other spells with mana value seven or less is an incredibly valuable effect