What is it: Abilities with a special name that can only be used when the 4 are equipped in your skill slots
How it works - EXAMPLE
Guardian's Frost beam - Beam
Guardian's Fire Blast - Blast
Guardian's Union - Dmg buff
Guardian's burst - Allows you to do a 10 combo ki blast, and less cost.
All of these skills would generally do more damage, but has a much higher cool down.
Had some revolutionary ideas for this a guild system for these abilities.
Okay so the Guardians Guild allows you to unlock these abilities by talking to the guild masters.
Guild Leader Zephiroth
Guild Berserker Bonehemoth
Guild Hunter Merridiam
Guild Strategist Laemon
These guilds leaders teach you the abilities if you defeat them and are part of the Guardian's Guild.
Remember you can only use the skills if all 4 are equipped into your skill sets. so you need to master all 4 of them and since you can only learn 1 skill every 30 minutes it would be 1 hour, and 20 minutes before you can truly be a part of the guardians guilds .
Choose wisely which guild you want to join because you can only join 1 guild, and stay with that guild forever.