Black orc Master Thief riddle

[tangar]

https://www.youtube.com/watch?v=LnRUyhHg76s&t=1623s

27:06
The Black orc Master Thief Creates a esmerising illusion.
You disbieve the feeble spell.

27:07
The Black orc Master Thief misses you.
the Black orc Master Thief hits you for 18 damage.
You grab hold of your backpack!
There is a puff of smoke!

But.. there is no thief nearby And I got see_inv (as ent and at item)

I understood what happen only after a while And you?

[tokariew]

Master thieves, and Shadowed monster are clear monster. You have just some chance of spotting them, thieves have better chance at spotting them

[tangar]

Btw its not possible to thiefs even with full ESP.. Is it a bug? Cause you have to spot them cause they have mind and think after all

[tokariew]

N:33:Master Thief
G:*:b
I:+20:%150d%150:+0:+50:=0
W:+15:8:%90:%250:A
B:*:EAT_ITEM:+2d+2
B:*:EAT_ITEM:+2d+2
B:*:EAT_GOLD:+2d+2
B:*:POISON:+5d+5
F:R_CHAR_y | R_CHAR_k | R_CHAR_o
H:DROP_90 | DROP_1D2
M:TAKE_ITEM | DROP_2D2 | INVISIBLE | FORCE_MAXHP |
M:IM_ACID | IM_FIRE | IM_COLD | IM_POIS | NO_CONF | NO_SLEEP | NO_FEAR
M:CHAR_CLEAR | ATTR_CLEAR | NO_BLOCK
O:HAS_LITE
S:1_IN_5 | CONF | DARKNESS | TRAPS | BLINK
#| BA_DARK
T:MF_ALL

you see them with esp, but they have Clear colour and glyph, so you don't see them with your own eyes. You can still attack master thieves with spells, ranged attack and so on.

attr_clear probably mean they have a colour of tile, on which there are standing, like clear hound or clear icky thing.
and char_clear is for no glyph i think

[tangar]

I see now, thanks. Maybe I didn't saw 'CHAR_CLEAR' cause new graphical tiles make floor less noticible.