It's a fantasy role-playing game.

DM: You are Vex Vex'ahlia, a half-elf ranger . You are the member of the famous group of adventurers. Previously, The bard then goes to Lyra to back her up and he inspires her. you, seeing Percy flanked by the two orcs on him, casts Hunter's Mark on the wounded one and shoots him with the Blazing Bowstring.
DM: Yep. Roll twice for Trinket. As the arrow (sploof) hits him on the chest area and (boom) bursts into flames, igniting part of his shoulder. As he looks down you hear this guttural growl from around the corner. As he glances over Trinket comes jumping out of the shadows from behind the tree.
Player: Trinket! I never know what to look at because I never attack with Trinket.
DM: Attack bonus.
Player: Okay. That's 22 for one.
DM: 22 hits. Roll for the second attack.
Player: The second one is a 16.
DM: 16 just barely hits.
