Mothron

	Classic	Expert	Master	Legendary (For the Worthy)
Life	6,000	12,000	18,000	24,000
Attack	80	160	240	426
Defense	30	30	30	30
Knockback Taken	20% (Low)	18% (Low)	16% (Low)	16% (Low)
Coins	5	1250	1250	1750

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.

Classic

Item	Quantity	Chance	Kills for 50%	Kills for 90%	Conditions
The Eye of Cthulhu	1	1/3 (33.3%)	2	6	After all three mechanical bosses are defeated After Plantera is defeated
Broken Hero Sword	1	1/4 (25%)	3	9	After all three mechanical bosses are defeated
Wings of Evil	1	1/15 (6.67%)	11	34
Mothron Wings	1	1/20 (5%)	14	45	After all three mechanical bosses are defeated After Plantera is defeated

Expert

Item	Quantity	Chance	Kills for 50%	Kills for 90%	Conditions
The Eye of Cthulhu	1	5/9 (55.6%)	1	3	After all three mechanical bosses are defeated After Plantera is defeated
Broken Hero Sword	1	7/16 (43.8%)	2	5	After all three mechanical bosses are defeated
Mothron Wings	1	39/400 (9.75%)	7	23	After all three mechanical bosses are defeated After Plantera is defeated
Wings of Evil	1	1/15 (6.67%)	11	34

Master

Item	Quantity	Chance	Kills for 50%	Kills for 90%	Conditions
The Eye of Cthulhu	1	5/9 (55.6%)	1	3	After all three mechanical bosses are defeated After Plantera is defeated
Broken Hero Sword	1	7/16 (43.8%)	2	5	After all three mechanical bosses are defeated
Mothron Wings	1	39/400 (9.75%)	7	23	After all three mechanical bosses are defeated After Plantera is defeated
Wings of Evil	1	1/15 (6.67%)	11	34

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