Theyre not dominant numerically, but theyve been a consistent presence since their introduction
Color Differences: Check for uniform color on both sides of the card
When holding a card that you believe may be a fake card, feel the surface of the card
Ideally you'd want a few things that can exile it from graveyard or hand, such as Gurmag Angler, Soulflayer, Tombstalker, Scavenging Ooze, Grim Lavamancer), Azor's Gateway Flip (from hand), or the most hilarious option, Serum Powder
It doesn't look like all that much at first read, as a two-mana 1/1 that comes along with a 1/1 token and then can sacrifice itself in the late game to tutor an equipment directly onto the battlefield for six mana