mtg blue tutor cards Acquire - Foil reveal it Mystical Tutor (DMR-421) - Dominaria

You could go infinite with spell copying or just generate lots of mana on the end step and deal damage/draw cards in conjunction with Wilderness Reclamation or Ral, Storm Conduit

Where it gets interesting is when you use this blue creature as a vessel to proliferate other cards

I know I am going to get multiple copies of this for my myriad of kindred decks

Landfall effects are notably potent in decks with means of putting additional lands into play, as Landfall abilities will be able to trigger additional times and provide additional value

Unfortunately, I'd probably do it again

Its been reprinted, but the Alpha version of the card is very valuable (especially in excellent condition)