Game Mechanics: Barbarian Rogue Slam

[Adcid]

It seems while in Dark Elf illusion I cannot even find the slam ability under abilities or combat abilities. When i drop my illusion back to Barbarian (original race) it shows up just fine. the ability does no function when in dark elf illusion but works fine in barbarian.

Is this function working as intended? Does an illusion give you the ability of the race and remove your original race ability?

If so;
-an ogre illusion would give frontal stun immunity
-a Dark Elf Illusion gives ultra vision, but wouldn't it also give hide
-Iksar illusion should give the same regen as trolls with a bonus of 100 base swim and forage?