Its not the most interesting card in the world, but it is a card that I think has a right to exist, and a card that fills a good niche within those niche builds, which is have a win condition that isnt just combat focused
Look at that work of art
Sphinx's Revelation Sphinx's Revelation is an extraordinary instant from Return to Ravnica
Many of these cards especially the best colorless creatures MTG like Wurmcoil Engine also have a triggered ability that goes off when they enter the field or when a certain event happens, which can add layers of strategy to your turns
Theres a lot of exciting +1/+1 counter synergy in Golgari, obviously, not least of all Reyhan, Last of the Abzan and any number of the counter-doublers
Its just that most people didnt understand what was winning the games or not, and sometimes, whoever took the last shot would get the glory