Fortunately, there are still hidden gems out there that can help fill the gap, particularly in some of Magics older sets
Lightly textured, low-gloss back
(by discarding G Golem Pebble Dog) or Loading
You can try your hand at all kinds of play modes - from solving duel puzzles (like newspaper chess puzzles, using a given set-up to flip the odds and pull out a single turn win) to competing in events with certain restrictions and even endurance matches
Though as with any penny sleeve, theyre not particularly suitable for longer term handling or playing of cards, as a way to protect low cost, low value cards in bulk, wed expect most collectors to have Ultra Pro penny sleeves stashed somewhere in their hundreds
If you are not used to doing this, write down your opponent's instant speed cards while you are playing so you have a handy reference sheet available whenever it looks like something tricky might be afoot