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Units out:

Micaiah’s group: 20, including Micaiah, Sothe, Leanne, Skrimir, Sigrun
Ike’s group: 20, including Ike, Mist, Nailah, Rafiel, Titania, Soren
Tibarn’s group: 20, including Tibarn, Reyson, Ranulf, Elincia, Lucia, Tauroneo

Other characters can be swapped between the groups, although the default positions are mostly ideal.

Ike auto-promotes into Vanguard at the beginning of this Part.

Prologue: Chaos Named

Victory: Rout
Defeat: Micaiah, Sothe or Sanaki dies
Units out: 15, including Micaiah, Sothe, Sanaki, Sigrun, Skrimir and Naesala
Affinity: Dark

Switch to Micaiah’s group. Sothe auto-promotes into a Whisper at the end of this chapter.

Chapter 1: Road to Empire

Victory: Rout
Defeat: Ike dies
Units out:

Easy: 15, including Ike
Normal: 12, including Ike

Affinity: Thunder

Ena appears as a NPC unit.

Chapter 2: Silent World

Victory: Rout
Defeat: Tibarn or Elincia dies
Units out:

Easy: 15, including Tibarn and Elincia
Normal: 12, including Tibarn and Elincia

Affinity: Earth

Switch to Tibarn’s group.

Chapter 3: Distortions

Victory: Rout
Defeat: Micaiah, Sothe or Sanaki dies
Units out: 15, including Micaiah, Sothe, Sanaki, Sigrun and Skrimir
Affinity: Fire

Switch to Micaiah’s group. The Black Knight later appears as a NPC unit.

Chapter 4: Revelations

Victory: Rout
Defeat: Ike dies
Units out:

Easy: 18, including Ike, Tormod, Muarim and Vika
Normal: 14, including Ike, Tormod, Muarim and Vika

Affinity: Water

Switch to Ike’s group.

Chapter 5: Unforgivable Sin

Victory: Defeat boss
Defeat: Tibarn or Elincia dies
Units out:

Easy: 18, including Tibarn and Elincia
Normal: 12, including Tibarn and Elincia

Affinity: Wind

Switch to Tibarn’s group

Final Chapter: Rebith

All characters unite.

Units out: 16, including Ike, Micaiah, Sothe, Sanaki, Kurthnaga and Ena, excluding Rafiel, Leanne or Reyson

At the end, you must choose to send one of Rafiel, Leanne or Reyson (bringing the total unit count to 17). After this, all other characters become unavailable for the rest of the game.

Final Chapter-1: Rebirth

Victory: Rout
Defeat: Ike or Micaiah dies
Units out: 17, including Ike and Micaiah
Affinity: Fire

Lekain may cast Silence on the whole group.

Final Chapter-2: Rebirth

Victory: Defeat boss
Defeat: Ike or Micaiah dies
Units out: 17, including Ike and Micaiah
Affinity: Earth

Ike will be seperated from the rest of the group.

Final Chapter-3: Rebirth

Victory: Defeat boss
Defeat: Ike or Micaiah dies
Units out: 17, including Ike and Micaiah
Affinity: Heaven

At the beginning of the chapter, Yune will bless everybody in the party. For the rest of the game, equipped weapons (at the time of blessing) will have unlimited uses and, in Easy mode, all characters will receive +5 to all stats. Ike also cannot unequip Ragnell for the rest of the game.

If characters other than Kurthnaga or Ena approach Dheginsea, he may attack with a physical wave, which increases in damage closer to him.

Final Chapter-4: Rebirth

Victory: Defeat boss
Defeat: Ike or Micaiah dies
Units out: 17, including Ike and Micaiah
Affinity: Water

Sephiran’s surrounding Spirits have a hidden Guard skill, which lets them absorb damage for him.

Sephiran can also use a magical area attack, which increases in strength closer to him.

Final Chapter-5: Rebirth

Victory: Defeat boss
Defeat: Ike or Micaiah dies
Units out: 17, including Ike and Micaiah
Affinity: Light

Ashera cannot be harmed when she still has surrounding Auroras. The Auroras will return half their taken damage, unless their foe has Nihil (or uses Parity) or they are KO’d by the hit.

Ashera has varying attacks that she can use during her turn. They are as follows:

Turn 1: Multiple-target physical attack (Range: All, Attack: 60 – [3 x Number of spaces between user and enemy], Hit: 245)

Turn 2: Single-target magical attack (Range: 1~7, Attack: 65, Hit: 245, Attack Speed: 28)

Turn 3: Multiple-target magical attack (Range: All, Attack: 65 – [3 x Number of spaces between user and enemy], Hit: 245)

Turn 4: Single-target physical attack (Range:1~7, Attack: 58, Hit: 245, Attack Speed: 28)

Turn 5: Multiple-target Silence attack (Range: All)

Turn 6-9: Same as Turn 1-4

Turn 10: Multiple-target Stun attack (Range: All)

Turn 11+: Cycles through all the above

(All attacks cannot critical.)

Only Ike can finish off Ashera, otherwise she will keep reviving herself (in Easy Mode she will regain few HP, but in Normal/Hard Mode she will regain all HP).