Still, when you look at a set like Edge of Eternities , there are only fifteen Legendary Creatures, with a good amount of those being the same character at different points in the story
Also, the lifegain hardly ever matters in a format like Commander, making it largely null in most cases, especially when small utility creatures are targeted
If you're playing Hearthstone and know that the new meta is dominated by gurgling Murlocs, you'd normally have no option but to buy a dozen random packs and hope you draw what you need, putting a quite a lot of money into ActiBlizz's pocket along the way (and even then you're not guaranteed that you'll get the cards you want, potentially prompting further purchases)
Here's what the current Pioneer metagame looks like
It's the kind of card that wins games with perfect timing and makes you feel like the real hero of the table