According to a note in a bottle in Arcanus Cella, there are 215 Magic Circles in all. 200 are learned by classes, 1 is the basic circle learned by all characters, and 14 are earned through achievement.
Basic Magic Circle[]
False Mind is the basic Magic Circle that all characters begin with regardless of class. It has two Sub Character spaces, one of which has an HP -60% space attached.
Class Magic Circles[]
Each class has 20 Magic Circles that are learned as the character levels up in that class. The first Magic Circle is provided at Level 1.
Warrior[]
Wizard[]
Saint[]
Guardian[]
Ranger[]
Merchant[]
Swordmage[]
Ninja[]
Dragoon[]
Shaman[]
Earned Magic Circles[]
Some Magic Circles are earned by special achievements.
Neo-geon King[]
This Magic Circle is unlocked by safely exiting the 99th floor of a Neo-geon. Only the Main Character will receive the circle. It has four Sub Character spaces, all of which have Job Skill 1 effects. The left and right characters have Mana 2x spaces and a total of -40% HP. Several CRT/SPD spaces are available, with one SPD space locked behind an Awaken.
Master[]
This Magic Circle is unlocked by safely exiting the 99th floor of a Neo-Geon with Monster Level of at least 400.
Total Conquest[]
This Magic Circle is unlocked by safely exiting the 99th floor of a Neo-Geon with Monster Level of at least 999.
Omnipotent[]
This Magic Circle is unlocked by safely exiting the 99th floor of a Neo-Geon with Monster Level of 9999.
Tri-geon King[]
This Magic Circle is unlocked by safely exiting the 99th floor of a Tri-geon on the Normal branch or the Transition floors. Only the Main Character will receive the circle. It has 2 built-in Widens, space for 5 Sub Chars with Job Skill effects, and two Gate Revive spaces that are both tied to Fatemate spaces. There are 2 Ability #1 and #4 spaces, and one space each for the remaining abilities.
Lord of Chaos[]
This Magic Circle is unlocked by safely exiting the 99th floor of a Tri-Geon on the Chaos branch.
Lord of Heaven[]
This Magic Circle is unlocked by safely exiting the 99th floor of a Tri-Geon on the Heaven branch.
Limit Breaker[]
This Magic Circle is unlocked by safely exiting the 99th floor of a Tri-geon with Monster Level of at least 400. Only the Main Character will receive the circle. It has 2 built-in Widens, space for 6 Sub Chars with Job Skill effects, and various damage redirecting spaces.
Pass the Summit[]
This Magic Circle is unlocked by safely exiting the 99th floor of a Tri-Geon with Monster Level of at least 999.
Perfect Form[]
This Magic Circle is unlocked by safely exiting the 99th floor of a Tri-Geon with Monster Level of at least 1999.
Invincible[]
This Magic Circle is unlocked by safely exiting the 99th floor of a Tri-Geon with Monster Level of at least 4999.
God Exceeder[]
This Magic Circle is unlocked by safely exiting the 99th floor of a Tri-Geon with Monster Level of 9999.
Ultra M[]
This Magic Circle is unlocked by safely exiting the 99th floor of a Ran-geon while in Immortal Chase mode (purchased from the Back Alley shop with 500G). It's best to attempt this from the Neo-geon, since the black Immortal starts at lvl 1 with the rest of the monsters. This circle has space for 8 Sub Chars, seven of which give all their mana to the inner-front Sub Char. This Sub Char has -4800 in Mana penalty spaces attached, but whatever mana is left will go towards one built-in Widen followed by a chain of 3 Growth spaces and 12 ATK, DEF, HP, SP, SPD, and CRT spaces. There are no Ability spaces in this circle.
Lucky 7[]
This Magic Circle is unlocked by safely exiting the 99th floor of a Ran-geon with a Monster Level of exactly 777.
[]
There are three more Magic Circles that seem to be unavailable through in-game means: Six Skills, Hello Job and Petit Awakening.