Bone Serpent

	Classic	Expert	Master	Legendary (For the Worthy)
Life	300	600	900	1,600
Attack	36	72	108	213
Defense	12	12	12	14
Knockback Taken	0% (None)	0% (None)	0% (None)	0% (None)
Coins	12	30	30	42

The last column is Master mode in a world made with the For the Worthy seed. Its numbers were measured in the game, not computed here.

For one player in a world before Hardmode. Expert and Master scale life, attack, knockback and coins by the game's own multipliers.

Coins: each kill rolls the coins from 80% to 175% of this value, then rarer extra rolls can add more.

3 variants

The game spawns this NPC in several forms that share its name. Each form has its own numbers.

Classic

Variant	Life	Attack	Defense	Knockback Taken	Coins
Variant 1 Size 100%	300	36	12	0% (None)	12
Variant 2 Size 100%	300	20	18	0% (None)	12
Variant 3 Size 100%	300	16	18	0% (None)	12

Expert

Variant	Life	Attack	Defense	Knockback Taken	Coins
Variant 1 Size 100%	600	72	12	0% (None)	30
Variant 2 Size 100%	600	40	18	0% (None)	30
Variant 3 Size 100%	600	32	18	0% (None)	30

Master

Variant	Life	Attack	Defense	Knockback Taken	Coins
Variant 1 Size 100%	900	108	12	0% (None)	30
Variant 2 Size 100%	900	60	18	0% (None)	30
Variant 3 Size 100%	900	48	18	0% (None)	30

Classic

Item	Only from	Quantity	Chance	Kills for 50%	Kills for 90%	Conditions
Bone Serpent Kite	Variant 1	1	1/15 (6.67%)	11	34	Drops on Windy Days
Hotdog	Variant 1	1	1/30 (3.33%)	21	68	Not from enemies spawned by a statue

Expert

Item	Only from	Quantity	Chance	Kills for 50%	Kills for 90%	Conditions
Bone Serpent Kite	Variant 1	1	1/15 (6.67%)	11	34	Drops on Windy Days
Hotdog	Variant 1	1	1/30 (3.33%)	21	68	Not from enemies spawned by a statue

Master

Item	Only from	Quantity	Chance	Kills for 50%	Kills for 90%	Conditions
Bone Serpent Kite	Variant 1	1	1/15 (6.67%)	11	34	Drops on Windy Days
Hotdog	Variant 1	1	1/30 (3.33%)	21	68	Not from enemies spawned by a statue

Chance is per kill. Kills for 50% and 90% is how many kills give that chance to see the item at least once.