I get that drawing the extra cards from spells like Brainstorm can easily be preferred, but do not underestimate the advantage looking at your top 5 can give you
The typical win conditions are Exsanguinate and other big drain effects
Just be prepared for a hefty price
Since mana burn is a thankfully dusty memory, you can flood that pool to your heart's content without the risk of accidentally frying yourself
Treasures of Smaug The Hobbit The dialogue over the Treasures of Smaug is a flavorful fit for the foil cards you get in this scene box from The Hobbit
I didnt think For ten mana, this card exiles half of an opponents library, gets at least three +1/+1 counters (going by average mana values), making it a 10/10 most of the time when it enters with a Ward - Annihilator 2 level of built-in protection, and, again, likely Annihilator 3 if you exile at least a permanent card with a mana value of three from half your opponents deck (again, this is being conservative)