It's a fantasy role-playing game.

DM: You are Keyleth, a half-elf druid . You are the member of the famous group of adventurers. Previously, Jarett grapples the one in the cell, dragging it back out into the hallway. Vex runs down the stairs, just barely getting a shot off on the enemy Jarett is grappling, then places her Hunter's Mark on it.
DM: No, half of that was getting to that point. You could dash and try and make your way in, but you wouldn't be able to do anything.
Player: Can I dash and then make a bonus action?
DM: You could, yeah. Your call. What do you got? Grog, you're on deck.
Player: I'll just wait.
DM: Okay. Keyleth waits there. Grog, you're up.
Player: Let me just scootch over so I can be behind Vex.
DM: You have a little better movement, so you actually manage to get two more squares in. What's your speed again?
