Looking over the entirety of the card list, it really feels like blue and green are the big winners for Energy
As time goes on the power of this card will only grow as well, it's very common for something like this to be printed and languish for a little while until something else releases that turbocharges it and then suddenly it's really good
Rather, a second "reflexive" ability triggers when you sacrifice another creature or enchantment this way
Its no wonder these big spells are popular in Commander, and theyve been reprinted in a few Commander products over the years
If anything, it probably wants them to, and Garna, Bloodfist of Keld is a perfect representation of that
The weakness here is that your opponents know you are most likely to cast your biggest spell first, and that knowledge will make them want to counter your first spell