Natural talent and vampirism are not really equal and need power adjustments
Currently AP is valued at 21.75 gold per point =(amplifying tome) AD is valued at 35 gold per point =350 (long sword) life steal is valued at approximately 37.5 gold per point (vamp scepter -its ad) spell vamp doesnt really have a value and there is no way for me to calculate it logically to my knowledge. But keeping on topic the point im getting at is pretty simple. why does natural talent give 676 gold worth of base stats and vampirisim gives 75+? amount of stats in terms of gold. This isnt me trying to make an end all be all point about the value of certain stats. Im just noting that damage is so high and sustain so low that it seems illogical to even go for sustain at any point. I feel like this is part of riot's skew towards too much damage.
Edit: the biggest flaw I keep seeing people put out is that because vampirism is multiplicative in stats, so my comparison is intrinsically flawed. I dont think this is true. The reason is that if you think about it most players have begun no longer using vampirism because it is not that good and using natural talent instead. After trying out masteries without vampirism ive found that feast feels like it gives more of the overall sustain needed for the early game. To put it into another context everyone assumes multiplicative stats are better: 3 x 3=9 vs 3+3=6. My point is that vampirism breaks this logic because it's so low that it's more like 0.3 x 3=0.9. One idea i didnt realize was that it could be geared towards early game, as i noted earlier in this edit, but that still does not make sense. Why gear a multiplicative stat towards the early game where it would be most useless? with so little sustain you would still need sustain from somewhere else like items so you might as well just pick up the sustain from items and take the raw AD which will multiply much better overall.
In essence my arguement is that champions have such low base stats at lvl 1 that vampirism is useless and natural talent is better. As the game scales on natural talent remains better because no matter what, if you want sustain you need to purchase it in the form of a lifesteal item. This means that natural talent is superior at every phase of the game.