Old-Growth Troll is an efficiently-costed creature that will help you ramp out even bigger threats after it dies
And his devastating -12 for ultimate card advantage
Its much the same process with sites like Star City Games, TCGplayer, Card Kingdom, etc., and a lot of the differences come down to the exact seller fees, the buylists each individual site has, and how you need to ship your cards
New cards like 'Aerith Gainsborough' that get's stronger when you gain life but then disperses her +1/+1 counters to her teammates when she dies or with 'Gilgamesh, Master-at-Arms' who let's you draw a bunch of cards and freely play any equipment cards onto the battlefield (too bad the card doesn't also play 'Battle on the Big Bridge' track)
At the same time, she doesnt remove two life points from each opponent, but she deals damage, which triggers the effect of a whole lot of interesting cards
One thing I will point out is that Bone Picker can do a solid job at pressuring planeswalkers, an ability that is as important as its ever been right now in Standard