Note: These do not have to be in the same match as it is impossible to get them all in one match. But they do however accumulate over both Quick Match & Co-op Mode. And they also accumulate over the Special Challenges
Note: You DO NOT need to use any of the new characters. The original three (Warrior, Cleric, Mage) are the only ones you need.
Note: If you disconnect from a match, all the Skills that you used in that match will NOT count.
Note: You can use "Spawn Stronger" to get the Skills you need or just use it for a boost when you are struggling. They normally cost 3000 Happy Stars each round.
Note: You do not need to kill the player that you hit/kill with a Skill, you just need to use/execute the Skill for it to count. Thank you BadTriangle for this.
[Update: A 47MB update has been added to the game on the 22nd January 2013 I believe. Team skills now work on a "Drop in, drop out" system making them much easier to pull off.] Thank You RAS 2112 for confirming this.
[Update 2: Thanks to the new update, 3 new Skills have been added, 1 skill warrior, mage & cleric. For the achievement to pop now... you must now also use Shield Charge+ for the warrior, Aura+ for the cleric and Shapeshift+ for the mage. Thankyou VixyNyan for this, I haven't played the game in a while :-)
The achievement should unlock at the end of the game, so don't worry about it too much if it doesn't pop straight away. Thanks MR MOO 69 for this.
The way I did it was constantly play in Co-op to get the different skills for each of the character classes. Co-op is easy because you are against bots. But some rounds can be difficult if you are either a low level or it is a Major Enemy. Some Skills are harder to get than others, in other words some Skills don't appear that often in your Skill bars when you unlock them in the match, that's why you need to keep playing and get the certain Skill you need.
You can also try and get four friends or more together and make the match last so you can each get Level 5 EXP to unlock the Skill you need.
They have also added "Skill+" to weapons and item's. Skill+ is a new type of Buff which allows you to use magic like napalm or Lightning Strike. Just equip the Skill+ Buff on your item(s) and you should be able to use the magic the Skill+ Buff comes with. I haven't been on the game in a while but I think these are how the Skill+ Buff's work. Thanks KaosCrimsonFire for pointing this out.
If you don't understand what I mean then please let me know and i'll try and describe it another way.
Right, here is a list of the Skills you will need to execute in order to get this achievement.
Warrior:
A Skill:
Smash
Spinning Blade
Charged Attack
Rush
B Skill:
Stone Throw
Roar
Super Guard (You might need to be blocking an attack for this to count)
Rocket Man
Y Skill (Team Skill):
Cheer
Group Rush
Iron Phalanx
Note: Make sure you host the Team Skill (Y) and you are the one getting the kills.
Mage:
A Skill:
Wind Enchant
Ice Enchant
Fire Enchant
Lightning Enchant
Note: You need to Enchant your team mates, you cannot Enchant the enemy players.
B Skill:
Wind Trap
Magic Napalm
Blizzard
Lightning Strike
Y Skill (Team Skill):
Meteor Storm
Tornado
Lightning Arrows
Note: Make sure you host the Team Skill (Y) and you are the one getting the kills.
Cleric:
A Skill:
Heal
Resurrect
Sanctuary
Dispel
Note: Heal, Resurrect & Sanctuary all need to be used on your team mates. You cannot use them on enemy players. Also Dispel needs to be used on a player with an effect on them so it can count as actually dispelling someone!As a note, dispel must have an effect to count. The easiest ways to get it to count are to either deconstruct materials (even ones you place yourself) or to join a quick match and dispel an enemy who has an enchantment on their weapon.
B Skill:
Summon Materials
Dash
Sacred Armour
Wall
Note: Dash & Sacred Armour can only be use on team mates, not on enemy players.
Y Skill (Team Skill):
Happy Miracle
Transport
Sacred Song
Note: Make sure you host the Team Skill (Y) and you are the one getting the kills.
Happy Hunting! :)