The packet name "Flashy" is likely a mistranslation
It doesnt steal cards itself, but there are plenty of effects that allow you to do so
Release Date: November 24, 2017 Archangel Avacyn Arguels Blood Fast Arlinn Kord Bloodline Keeper Bruna, the Fading Light Chandra, Fire of Kaladesh Delver of Secrets Elbrus, the Binding Blade Garruk Relentless Gisela, the Broken Blade Huntmaster of the Fells Jace, Vryns Prodigy Kytheon, Hero of Akros Liliana, Heretical Healer
If the enchanted permanent is a land and has land types, it retains those types even though it loses any intrinsic mana abilities associated with them
Here are a few reasons why many players consider it a good choice in various formats: Efficient Card Draw For just two black mana (BB), you get to draw two cards at the cost of losing 2 life
For dedicated artifact decks this is a straight-up Power Nine level card, and its now legal in Modern