Ive seen people discard Energy from Magnezone Prime and use FSL to retrieve it
Most plays are based on what you can do immediately to counter them or punish them
Oother cards have white labels
They didnt understand why the players enjoyed it. When Portuguese player Tiago Chans Invitational card, Snapcaster Mage, was printed in Innistrad in 2011, everybodyincluding Wizards of the Coast, probablythought that this would be the last time a player would get their face on a Magic card
The card pool might get stale at times, but the weekly and temporary events keep things fresh
This simple ruling may not only completely ruin your opponents plans, especially if their deck relies on casting lots of spells, but also stop them from doing it altogether, which is a win-win for you anyway