Stash tabs are pretty much required for serious play though I tend to see this as a free trial with an upgrade to a paid game. The investment is reasonable, and

Stash tabs are pretty much required for serious play though I tend to see this as a free trial with an upgrade to a paid game. The investment is reasonable, and more investment isn't necessarily Pay to Win (More). Though there is a meme in the community that when a popular skill gets MTX, it's nerfed next league. They made their sale, and it's time to bring a different skill to the forefront to make way for new MTX. There's definitely a risk of this kind of monetary incentive tainting game design choices.