This is a good anti weenie tool verging on a hate card
We've got all of the highest-mana-value cards possible with the exception of Emrakul, the Aeons Torn and Emrakul, the Promised End, which are both just way too expensive for the budget, especially considering that we'd just be using them for Calibrated Blast fodder and not actually casting them
Ignoring the hexproof rider, this is basically a Trailblazers Boots that draws you a card on attack in the right deck
However, graded cards tend to be pricier than ungraded ones, and odds are, theyre about to get even more expensive
Normal Holos are usually considered more desirable, especially because the Reverse Holo treatment is also used on uncommon cards - in fact you're guaranteed one Reverse Holo in every booster pack (usually an uncommon card)
There are loads of better sweepers overall, but a one-sided board wipe isnt to be underestimated