Can infernal drake not spawn as the first dragon, but have increasingly higher chances later on?

That way there is less snowball chance and a bit less incentive for 4-5 man ganking bot very early. Infernal being one of if not the most "desired" dragon, easily draws a lot of extra attention towards the bot lane from junglers and TOP/MID laners. And it is one of those buffs that if gotten while ahead, you tend to stay ahead for the rest of the game. To compensate its lack of a first dragon spawn chance, it could gain increasingly higher spawn chances as more dragons are taken. Something like this: 0%->25%->35%->45%->etc. Or maybe the last dragon before elder is always an infernal.