This makes comboing the card with Blightsteel Colossus less exciting
The pros are that these are easy to attain, and happen in the background The cons are that WotC picked which cards you earn and you have a limited time to do so
It depends on the cards, of course
Its a fine benefit, but honestly hes been powercrept since at least 2017 back when Kess, Dissident Mage was introduced similar ability (not quite as good since Dralnu can activate on opponents turns and potentially multiple times if you can untap him) but for a cheaper mana cost and gives you access to a third color but most importantly Kess doesnt threaten to sacrifice all your permanents if the Red player at the table hits you with some burn spell
In a 40-life format, unless youre planning on Storming off with lots of free noncreature spells, the Wizards just arent that scary
I have always wished for the creators of this game to really take advantage of the Prize card concept, but they never really have