Elemental Tomb AppendixF

Monster	Level	Drop chance
Brath	55	0.058%
Brutal Rex	50	0.053%
Blood Crawler Rex	50	0.053%
Blood Vafer Rex	50	0.053%
Fierce Snatcher Rex	50	0.053%
Fierce Grumble	49	0.052%
RashVafer Luther	49	0.052%
Blood Queen Crook	49	0.052%
Heavy Mit Clod	49	0.052%
Heavy Anabola	49	0.052%
Great Lava	47	0.050%
King Crook	47	0.050%
Blood King Twizer	47	0.050%
Argol Wasp	45	0.047%
Twizer Rex	45	0.047%
Lizard Khan	45	0.047%
GafMale	45	0.047%
Rex Cannival	45	0.047%
Argol Drone	43	0.045%
Freak Vafer Niffer	43	0.045%
Belphegor	60	0.045%
WarBeast Kin	42	0.044%
Vice Bloc Lunker	42	0.044%
Strayer	59	0.044%
Frenzy Ratmoth	41	0.043%
Splinter Rex	40	0.042%
SpyfusDoesn't spawn	60	0.045%
XelnakanDoesn't spawn	60	0.045%
StockDoesn't spawn	60	0.045%
TeledunDoesn't spawn	60	0.045%

Base drop chance per kill on a standard 2.2.3.2 server. Private servers multiply this by their drop rate. Monsters marked “doesn't spawn” are in the server files but never appear in the world.

Elemental Tomb AppendixF is a material in 12 item combination recipes. See the Leon combination guide.