Yes, Dragon isn't super important right now

But I'm pretty sure that the solution shouldn't be "if you manage to get the right dragon you basically win". Seriously, the first fire dragon gives the damage equivalent of the original first dragon buff before they nerfed it. If a team gets that they've got a massive advantage, and if another one doesn't randomly show up before they stop spawning that team's got a huge advantage and there's literally nothing the other team can do to even the buffs.

Making dragon more interesting is cool. But this entire idea of random, permanent buffs that there are a limited number of is a terrible idea. Games will be decided by one team getting the right one at the right time and another team getting one they don't need when they're in a position to take one. It will feel like absolute shit to lose because the other team just does more damage and there's absolutely no way to permanently level the playing field.

If you're set on the random buffs idea, make them temporary. If you're set on permanent stacking buffs, let players choose. As-is one of them will be better than the others no matter how you try to stop it because that's always going to be true, and games will be decided entirely off of one team being in the right place at the right time while the other team has absolutely no way to undo it.

Just please don't do this.