These two dorks are still close enough, and both put premium blink targets/sac fodder on board
For toploaders and semi rigids I like to use ultrapro penny sleeves but for my binders Im definitely a fan of vault x (slightly smaller than ultrapro)
This immediately benefits us two ways: 1) our overcosted finishers like Shard of the Void Dragon become much better since we can get them on the battlefield reliably fast and 2) our lesser ramp options like Hedron Archive can easily be cut since they're less needed
Genuine Magic cards are typically printed on high-quality card stock
Winged Shepherd: Techy play here would be to have Emeria Shepherd on the battlefield, cycle this, draw a non-Plains land, and be able to do it again
Card Bending This test can also minimally damage cards you may own, but another option to ensure a card is fake or not is to bend it over in half without adding too much pressure (like putting it between books)