As with hatebears, doing these things in moderation is perfectly fine
You can see the damage under direct light and you are worried it may not score a gem mint grade
Alternatively, you can stockpile your extra life and get benefits from cards like Caduceus, Staff of Hermes or Serra Ascendant
2 Deadly Disguise Kaust, Eyes of the Glade and Duskana, the Rage Mother There have been a few Commander decks over the years that have messed with how you play the game, but it is pretty rare to find one quite like Deadly Disguise
it does play better in a value deck, where you are focusing more on building board state and rebuying cool creatures and effects with it
You see, Eto is really just a going-second tool that can out certain bosses, but critically not the current boogeyman, Ryzeal Detonator