Nop, it does not. 50% mostly applies attack spells. Ethereal jaunt allows see up to 60'ft while ethereal but you can go through walls and other material obstacles.<br/><br/>However flip side incorporeal entities can see you clearly and thus try harm you (wraiths and shadows example). So you need be also invisible....good I memorized improved invisibility :P. Unless NPC caster can helpfully cast it or provide potion?