These cards are selected because, like the cards we went over above, they are game-warping effects that really only belong at the higher levels of play and at tables where people want to compete not just when playing, but also with their deckbuilding
a creature (or any creature) is not the same as target creature. Bear in mind that, if your opponent has several creatures in play, theyre unlikely to sacrifice the creature with hexproof
You really need the payoff for doing so to be big enough that you want to do it
You wouldn't necessarily know that from the first step of your gameplan though: you begin by amassing a token army
Some examples in Theros include Gods Willing, Savage Surge, and Dissolve, just to name a few
In a mono-Green deck you'll easily make this keep your stuff from dealing a lot of damage