TCGIndex doesn't give financial advice, but here's the data worth knowing: it sits around $0.67, up +0.0% over the last 30 days, with low volatility
Its also incredibly flexible, letting you Phase out other creatures as well if need be
If your cunning opponent targets your Rancor with Erase, then as it resolves Rancor will be moved to the exile zone, not the graveyard
Although many Magic fans would love to see a reprint of the comparable Spellstutter Sprite, Spell Stutter will hopefully make for a decent substitute in the meantime
Its not going to be that hard to cast, and once its on the battlefield it becomes a source of incredible value
Building a mono-green deck around this is an easy way to cheat huge creatures onto the board, with the likes of Ghalta, Stampede Tyrant offering even more value for their entry