Current PBE dragon changes
Dragon Slayer Buff
The Dragon Slayer buff has received a few changes Dragon's Might has been reduced to 6% from 8% +15% damage to towers and buildings is now granted at two stacks instead of four. +15% damage to minions and monsters is now granted at four stacks instead of two.
This is a step in the right direction in my opinion. I remember before the preseason jungle changes were live, Riot said that Aspect of the Dragon was indeed stronger than Baron and deservedly so because of the long term investment in the strategy. But the old dragon buffs actually had a pronounced effect earlier on in matches which encouraged snowballing as the increased AD and AP helped in trades and securing a second dragon, which in turn made it easier to farm and build even more of a lead (which of course helps for taking Baron too).