It's a fantasy role-playing game.

DM: You are Scanlan Shorthalt, a gnome bard . You are the member of the famous group of adventurers. Previously, Tiny Vax, thanks to a potion that does that. you managed to go ahead and put in an Immovable Rod within its stomach, which held it up for a moment, before it decided to truly gain the advantage it needed to escape the circumstance, allowed it to tear through its body, as well as an arrow that was shot by Vex, towards her brother, in the hopes of, I don't know, being a symbol of hope?
DM: The Interposing Hand interposes between you and a creature you choose until you give it a different command. It stays between the two of you, providing you half-cover against the target. So it helps from ranged attacks.
Player: Oh. But it won't block an attack. So in that case, I'll just attack with it.
DM: Okay, so you're just going to go and Clenched Fist?
Player: I'm going to try to finger it right in the hole that I came out of before.
DM: Of course you are! Go ahead and make a melee spell attack.
Player: He's the Bigby and the dike!
DM: That would be over here
Player: What do I roll? d20?
DM: d20, add your spell attack modifier.
Player: Oh! 27. Oh! With advantage? 27.
DM: 27, that hits. Go ahead and roll 4d8 force damage, as Bigby angrily jams the magical finger back into the wound.
