Pros & Cons Black sleeves never go out of style Smooth card sleeves make shuffling easier 80 sleeves to a pack, leaving you with spares for a standard MTG deck Personal preference plays a huge role in what sleeves you end up using, between how the sleeve feels, what colors they have available, durability, and even how lucky you seem to be when you use those sleeves
The cheapest competitive leader
Days Undoing Day's Undoing had its time in the Constructed spotlight, but its mostly faded by now
It can also project information screens to allow a Duelist to scroll through their Main Deck, depict the Summoning conditions of monsters, or keep track of counters among other functions
More recent prints, which have the standard card back and the orange coloration of other Effect Monsters, are legal for Advanced constructed play, but the older promos are for display purposes only