While it can be argued that a card like Eternal Witness will often work better in some decks than Snapcaster Mage, you cant use that card to give something like Mana Drain flashback at instant speed to stop a key threat and keep you in the game
One could, in theory, utilize Ad Nauseam to simply draw some cards, but let's not kid ourselves
Reality Twist, although it had a three Mana cumulative upkeep, was a great way to temporarily disable Mana production for a turn or three after which the upkeep was excessive
The Enrage ability of this Dinosaur is fittingly monstrous as its either removal or a win condition
While Snapcaster Mage is bizarrely overpowered, it has had the effect of getting creatures into more decks than would otherwise be willing to play them
This can essentially turn into a one mana spell that lets you draw three cards