Generally if I am running four cheat in targets I want one that is purely for ending the game and the rest I want to buy me time, gain me value, solve problems, and/or beat specific archetypes
Fast-mana strategies might only care about tapping it once, though it is also possible to create loops that repeatedly untap it, or sacrifice it and return it to the battlefield, to generate infinite mana
In Zombie decks with a low curve, Dusk // Dawn can be a powerful way to recur Zombies from the graveyard
A collective of +1/+1 counters decks, Voltron decks and Enchantress decks cried out Yes please, I hate Spore Frog! This reject from Toy Story is creepy, but also very effective at closing games
This Dreamborn Hero has the bodyguard keyword, making it so that your enemy must strike them first if they make a challenge
And giving them a card or two can be well worth refilling your hand with gas