The fifteen mythics that do NOT have a Textured version are a straight 1/80 to show up in that slot, but for the five that do, you need to flip a coin and see whether you get a Textured or not
A two-mana flying lifelinker that can disrupt your opponent's hand by stealing a card, Deep-Cavern Bat has seen plenty of play ever since it was released in last winter's MTG set Lost Caverns of Ixalan
And while it is only one use, this actually makes it easier to loop once you have a form of recursion
I think the only places you would see this getting used now is due to the cycling and as cyclers go this is one of the weaker ones
Between Manifold Key, Clock of Omens and Voltaic Servant to name just a few, its really not difficult to just use this every turn
Make no mistake, Blastoise is a beast on his own