Here's my feed back. These are all excellent concepts and I think they need only minor tweaking to get in the "spirit" of BG.
Command Cards
War Cry x1: During this turn, all enemy units engaged with units of yours suffer C: -1 during all courage checks.
Stampede x2: Your unit gains 1 impact hit during this combat phase. If its MC is above 5", it also gains an additional (+1) +0/+0.
Death before Dishonour x2: Your unit gains +0/+1. If your unit is not in the green, it gains an additional +0/+1 and courage +2 for the turn.
Last Stand x2: Your unit gains (+1) +0/+0. If your unit is not in the green, it gains an additional (+1) +0/+0 and courage +2.
Intimidate x1: Play during a battle where your unit has less damage than its opponent(s). The opponent gets (-0) /-0/-1 and -2 courage during that battle.
Looks quite good, although the new version of War Cry is a bit meh...imagine T-rexes routing from 100-point units or something. But still, generally the faction's units are quite scary so with a bit of "suspension of disbelief" we can probably get through.