The main issue with this card is that it costs you tempo to deploy on curve and loses a lot of value if made late
I initially didnt put Colossus Hammer in my top 5 because its only really played in 1 deck, but considering the format share and winning Hammer had in the past, I can see it being in the top 5 as well
A lot of the times, you will actually be sacrificing your creatures to trigger specific effects
The Planeswalker's Guide to Edge of Eternities will tell you everything you need to know about how to survive in the Edge (or at least make yourself useful enough to be spared)
The only real home for this is a Kaust, Eyes of the Glade deck that's trying to win quickly
You should also know that by increasing Esper Sentinels power, it becomes harder for your opponent to pay the mana tax, making it more likely that theyll let you draw cards