Running Eldrazi Temple is a much more serious cost than simply playing Magic
A 4/4 haste for three is way above the curve, but it comes at the cost of having to sacrifice it in your end step unless you pay two Energy
No doubt players will look at this card and their first thoughts will jump to long-time staples such as Relic of Progenitus and Soul-Guide Lantern, both of which can exile entire graveyards while simultaneously giving you the ability to draw a card in the process, replacing what you lose in the transaction
Each one has its unique perks, so find the one that works best for you depending on how many cards you are shipping at once
A lot of red card draw spells tend to be high velocity, low advantage
Note this has to be cast to work, but with returning it to your hand instead of your battlefield, I like this in artifact recursion to kill, and recur, ideally after copying a Mindslaver or Memory Jar