Lots of people stand on a cliff and look down on an alpha. And stand there and shoot it. My idea was to give alphas less attack and hp, but give alpha rexes the ability to summon a quetzl if they are at 1/3 health, Carnos an argent, and raptors a pteradyactal. They would be invincible, but only be able to carry you closer to the alpha, with no fall damage. All of these are summoned at 1/3 health. They would not spawn if the alpha had recently damaged you, and would despawn on the alphas death or return to over 1/2 health.