Every tier has a chance (a weight, it doesn't need to add up to 100) and a list of commands. One command is picked at random and %player% is replaced with the player's name.

tiers:
  rare:
    chance: 30.0
    color: "&b"
    prefix: "&f[&bRare Reward&f]"
    rewards:
      - "give %player% minecraft:diamond 5"
      - "eco give %player% 5000"
      - "skills xp add %player% all 1000"

• The combo multiplier scales the amount in give, eco give, xp and skills xp add commands. Other commands run as they are.
• Add display-name to a tier if you want players to see a different name than the tier key.

AuraSkills has no option to give XP in every skill at once, so the plugin does it for you. skills xp add %player% all <amount> gives the amount in every skill listed under auraskills.enabled-skills in config.yml. Remove the skills you don't use on your server.

Set settings.language in config.yml to en or id. The files are in plugins/ChristmasGift/lang/ and you can edit them however you like.

For another language, copy en.yml to something like es.yml, translate it and set language: es. Anything you don't translate falls back to English. Set a message to "" if you don't want it sent at all.

Item names in reward messages show up in each player's own game language.

Cooldown between gifts, broadcast on/off, the combo tiers (gifts needed, multiplier, name, color), effects and sounds, and the gift item itself (name, lore, material). Everything is explained inside the file.