There are no restrictions, nothing is needed to cast it, making it a staple in every single land destruction deck
It also works exceptionally well with Esix: if you have seven lands when you cast Avenger and Esix is on board, your Plants will all become Avengers of Zendikar, which will then make their own Plant tokens
I still draw on the same parchment and not only that but use the same smoothed-with-time technical pencil
Besides community-made formats like PreFIRE, Classic Legacy, and 2015 Modern, one way I like to play with uncompetitive cards and strategies is through Spice Paradise, the Premodern webcam league I organize that prohibits top tier strategies
Also, remember that certain reprints of cards also rotate, for example, Quick Ball
Do what you have to do to minimize the damage and make Burn's job harder