Black Crypt - items special features

[Doomer]

Hello.
I have no idea about 6 items special features, maybe someone find this during play.

Cavalier (Unknown special:9 value:1 charges/time:100)
Storm Shield (AC +6, Unknown special:32 value:0 charges/time:infinite)
Ice Mail (AC +8, Unknown special:32 value:0 charges/time:250)
Dragon Bane (AC +10, Unknown special:31 value:0 charges/time:250)
Crown of Lionheart (AC +1, Unknown special:8 value:2 charges/time:infinite)
Belt of Sustenance (AC +1, Unknown special:50 value:65535 charges/time:infinite)

Second thing. Pits is broken on emulation? When party member died after fall, his items landing on top of the pit on level up, not where party lands.
I don't remember this on real hardware years ago. Tested on 2 emulators, many configs and any Black Crypt versions.

[Doomer]

Update. Put items to dungeon start to see effects when party and monsters have low stats, and result:
Cavalier - Regenerate HP, 20 minutes
Storm Shield - Fire attack protection, not fire glyph, infinite time.
Ice Mail - Fire attack protection, not fire glyph, ~60 minutes.
Dragon Bane - Cold attack protection, not cold glyph, ~60 minutes.
Crown of Lionheart - Decrease hit probability with melee weapons. Normaly its 1 hit per 2-3 attacks, with Crown of Lionheart 0-2 hits per 30 attacks. Maybe hidden positive aspects, but not find yet.