First, the Ward effect makes it virtually impossible for your opponent not to get 2-for-1d by the Regent, since they will have to discard a card just to target it in the first place
Creatures often have other abilities too, like this Colossal Dreadmaw
The primary reason is that the less your opponents know, the less informed their blocking decisions are
With high damage output and iconic status, this card became a favorite among both collectors and competitive players
Questing Beast Questing Beast has all the text you could want and each of the text sections works effectively
Second, if you do decide to open boxes of paper Magic cards and open an Approach of the Second Sun that you don't want, that Approach of the Second Sun still has value because someone else wants it, so you can trade or sell your Approach of the Second Sun and get the Mizzix's Mastery or Mind's Desire that you do want, which is another feature of every other form of Magic that is missing from Magic Arena since Wizards decided to exclude dusting, trading, or any other form of collection management from the client