I feel the elder drake buff lasts a bit too short isn't it?
So...The baron buff lasts 3min 30secconds, while the elder drake lasts only 2 min. The elder dragon does good amount of damage to champions, so when you finish it you will need to recall most likely. Therefore the amount of time you can actually capitalize on the elder buff is about only 2-3 waves. I feel like 3 or more drakes are needed for a elder buff be relative to trade with the baron buff. Consider the risk of taking an elder and baron are pretty close now, I think elder dragon buff should last a bit longer. Plus the elder dragon spawns 10 min after taking which is ridiculous long. I just feel 30seconds or 45seconds more on the elder buff fits more compared to the risk of taking it. Consider the old 5th drag buff lasts 3 min and the goal of updating the whole dragon system.