Blood Contract (Chapter)

Blood Contract is the 14th chapter of Part 3 in Fire Emblem: Radiant Dawn, and the third to be played from Daein's perspective. It is notorious as being the only chapter where Ike stands as your enemy, as the boss this time around.

Objectives
You have a choice: either you hold the line (the green line that Micaiah cannot cross) for 12 turns or you kill the boss (Ike) before the twelve turns run out. The latter is usually considered the harder to accomplish unless you use the Sleep staff you gain in the mission's Base phase and you use the turns in which Ike is asleep to kill him.

Strategies
For the first ten turns, you must focus on blocking the pathways (either with your own units or the mass of Allied units) on which the enemies can try to get past the line. For the last two turns, escape to the back lines as the foes who come at the end of the 10th turn would be virtually undefeatable.

Since all units must be brought out, place your useless units in the back.

Place in the storyline
This chapter is a key chapter for different reasons: it explains how Ashnard accessed the throne (by way of a Blood pact) and also an attempt at getting rid of the curse of a Blood Pact.