Though there are numerous ways to tell if cards are genuine or fake, the easiest is to just take a closer look at a card
Certainly it doesn't dominate cube like it used to but cube is not modern etc.
Brazen Cannonade Slamming creatures into combat for value now has even more upside, as if any of them dies, we deal two damage to each opponent with Brazen Cannonade
It can either speed up or slow down anything with time counters, and being an instant means you can do it at the most disruptive moment
Unstable Glyphbridge leaves behind only a creature with power 2 or less, and its very good in formats like EDH when you want to wrath the board and leave your small commander around
Chances are, this artwork is brand new to you (unless you're a Vaporeon collector), and despite its age, the gorgeous rainbow background is timeless