In vanilla Dom3 there is only one *sane* pretender choice for EA Pangaea: Dom10 Awake Gorgon with E9N4 and possibly two points in Air. It makes her one helluva tough SC right of the box, although I would craft her two shields before sending her out. She only gets tougher when you research the basic nature, earth and air buffing spells, and she will be very useful for raids and leading armies even late into the game (later on she will first cast those army wide buffing spells before going in toe to toe with the enemy).
What is more, the E9N4 makes dryads pretty nasty thugs. Slap on a Vine shield, a piece of armour and some weapon with AoE, script Bless HolyAvenger Attack, and watch them rip through enemy ranks. High protection, Awe and regeneration is a crucial combo for the longevity of a thug
Then again, if you want for *thematical* reasons use a Carrion Dragon, then take D4N4 (so that you can later on summon Carrion Lords plus any and all death-summons you might want; remember that it is easy to empower to blood later on for the Death-Blood summons and items, also don't forget about Lamia Queens) and at least Dom9. With effective Fear 19 nobody (who are not immune to psychology, of course) will succeed the Awe check, so he is invulnerable in melee.
However, you will need somebody to actually deal damage, even indy slingers will do but for the first turns you have to rely on the javelin chukkers; you don't need much damage done, because the opponents will fail all morale checks because of the high fear. Just be sure to place the "damage dealers" (you don't often think of slingers as damage dealers, do you?

) well behind the Carrion Dragon, so that the enemy never makes contact with them before they rout because of all those morale tests caused by the minor damage.