combat rounds

free
Action

action 1

action 2

action 3

reaction

you have three action slots each turn. most actions cost one slot. some cost two or three​.
penalties may apply if repeating same action (such as making multiple attacks).

free-actions do not use an action slot. may require a trigger to use.

you also have one reaction slot per round. 
this can be used even if it is not your turn if its specific trigger is fulfilled.

2e ruleset