Langrisser II/Summons

Summons can only be used with the summoner class. Most require a special item. A summoner can only have one of these at a time--if you summon a new creature, the old one disappears. Spells seem to be randomly assigned, and each time their leader moves or a new turn starts they have a random chance to get a new bunch of spells. They never have more than 3.

Spells: Magic Arrow, Heal1, Force Heal1, Attack, Fireball, Earthquake, Tornado, Sleep, Resist.

Elemental

 * AT 22 DF 20 MP 10 MV 7 (Flying)
 * Attack type: Lightning blast
 * Requirement: --

Aniki
The best summon in the game, if you dare to use him. If not, just use white dragon instead.
 * AT 35 DF 30 MP 16 MV 5
 * Attack type: Flash
 * Requirement: Iron Array

Valkyrie

 * AT 29 DF 21 MP 25 MV 7 (Flying)
 * Attack type: Lightning hit
 * Requirement: Aura

Sleipnur

 * AT 31 DF 18 MV 10 (Horse)
 * Attack type: Charge (Energy hit vs. air)
 * Requirement: Odin's Buckler
 * No spells.

YrmGuard/Iremguard

 * AT 29 DF 28 MP 32 MV 5 (Sea)
 * Requirement: Gyaral Horn
 * Attack type: Slow charge (Fire dart vs. air)

White Dragon

 * AT 33 DF 22 MP 10 MV 5 (Flying)
 * Attack type: Fireballs
 * Requirement: Gleipnur

Fenrir

 * AT 31 DF 25 MP 10 MV 8 (Horse)
 * Attack type: Blur charge (Energy darts vs. air)
 * Requirement: Carbunkle

Freiya

 * AT 23 DF 25 MP 40 MV 7 (Flying)
 * Attack type: Wind
 * Requirement: Angel's Wing