The only format that you can play Dig in these days is as a one-of in Vintage or Commander
Game On And those are the mechanics of Conspiracy: Take the Crown
Details Artist: Dameon Willich Collector Number: 202 Available only as nonfoil Rarity: uncommon (U1) Released: 1994-06-21 Set: Summer Magic / Edgar Legalities legal Commander legal Duel Commander legal Ice Age Block legal Legacy legal Modern legal Penny Dreadful legal Premodern legal Vintage Rulings 2004-10-04 Whether or not a creature has flying is only checked on resolution
These are just the ones I found in my quick search: Tyvar's Stand, Legolas's Quick Reflexes, Loran's Escape, Shore Up, Blacksmith's Skill, Royal Treatment, and Blossoming Defense
A 3-mana 3/4 is immense by blues standards and it comes with indestructible and some card draw to back up the pressure it provides
But Geological Appraiser, as well as instants and sorceries like Contest of Claws, need to resolve for the extra spell