Sonic boom abilty

Use the sonic boom just like the warden
When joining the world for the first time use:

/function abilitystart:setup

Every time when joining the world use:

/function abilitystart:start

(you also need to do this after using abilitystart:setup)

The command to use it is:

/function w:a

(or /scoreboard players set @s warden_attack 1 in version B1.0.0)

but I recomend using the MyCommand Plugin

You can use this line in MyCommand config:

warden_attack_command:
  command: /wa
  type: RUN_CONSOLE
  runcmd:
    - "scoreboard players set $player warden_attack 1"
  permission-required: false

You can link it to a button with BindCommands

You can find the code github